// Pillar I
The endocannabinoid system, cannabinoid profiles, terpene science, and the entourage effect — the biological foundations of cannabis.
The body's internal regulatory network responsible for maintaining homeostasis. Produces its own cannabinoids from omega-3 and omega-6 fatty acids.
Ep. 001
The state of internal balance maintained by the endocannabinoid system. Cannabis interacts with the ECS to help restore homeostatic balance.
Ep. 001
The principle that cannabis works best as a complete plant profile. 80+ cannabinoids and 300+ terpenes working synergistically.
Ep. 001
Cannabinoids that originate in the cannabis plant, interacting with the endocannabinoid system through inhalation, ingestion, or transdermal application.
Ep. 001
Over 300 aromatic compounds in cannabis responsible for scent, flavour, and modulating cannabinoid effects. The overlooked frontier of cannabis science.
Ep. 001
A cannabinoid that develops through long-term degradation of THC. Associated with sedative effects, elevated in traditionally cured Moroccan hash.
Ep. 001
Using plants to absorb contaminants from soil. Cannabis was planted at Chernobyl to clean irradiated ground — a double-edged sword for consumption.
Ep. 002
Organelles inside trichome heads that produce phenolic compounds — the chemical precursors to cannabinoids. Located in the upper layer, driven by UVB light.
Ep. 003
Structures inside trichome heads that produce and store terpenes. Located in the lower section, their contents are released when the wax membrane ruptures.
Ep. 003
The heat-driven conversion of acid cannabinoids to their active forms. THCA becomes THC, CBDA becomes CBD. Why raw cannabis must be heated.
Ep. 004
A non-psychoactive cannabinoid formed through degradation of CBG in dried leaf material. Shows potential anti-inflammatory and analgesic properties.
Ep. 006
The raw, unheated form of CBD found in living cannabis plants. Has its own distinct therapeutic properties including anti-nausea effects, accessible through raw juicing.
Ep. 011
Robert Connell Clarke's reclassification: Cannabis sativa is hemp, Cannabis indica is all drug varieties. The industry's labels are botanically backwards.
Ep. 013
A locally adapted traditional cannabis variety developed over centuries of natural and human selection. The original genetic building blocks of all modern hybrids.
Ep. 013
The leaf-like structures enclosing cannabis flowers — long misidentified as "calyxes" even in Clarke's own publications. The trichome-covered structures hash makers prize.
Ep. 013
The unique combination and ratio of terpenes in a cannabis variety — a chemical fingerprint for identification, quality control, and predicting effects.
Ep. 013
A minor cannabinoid associated with appetite suppression and insulin regulation. May target specific pain types rather than offering general relief.
Ep. 017
A minor cannabinoid related to CBD appearing at trace levels (~0.25%). May help explain why whole-plant CBD outperforms isolates therapeutically.
Ep. 017
A fungal infection that penetrates cannabis from inside. Unlike surface powdery mildew, botrytis cannot be remediated — contaminated material must be discarded.
Ep. 018
A non-destructive analytical technique using magnetic fields to identify molecular structures in cannabis extracts.
Ep. 021
A quantitative method for assessing hash purity by weighing before and after melting.
Ep. 021
Harmful degradation byproducts in solvent-based extractions undetectable by standard HPLC.
Ep. 021
A rare cannabinoid degradation product marking poor-quality starting material.
Ep. 021
Dr. Grinspoon's proposed alternative to "entourage effect" — like an ensemble of musicians.
Ep. 023
Terpenes that rearrange into terpenoids when exposed to heat, water, or acids.
Ep. 025
Terpene compounds from three isoprene units, including humulene and caryophyllene.
Ep. 025
The temperature at which trichome wax softens from rigid to pliable, enabling rosin pressing.
Ep. 025
The dual nature of trichome glands — water-repelling outside, water-dependent inside.
Ep. 025
The outer wall of trichome heads that thermally decomposes during rosin pressing.
Ep. 028
Molecular seeds for crystal formation causing "sugaring" in concentrates.
Ep. 028
Stabilised immiscible liquid mixture explaining "buttering" in concentrates.
Ep. 028
Extremely small trichome structures (<15 microns) abundant on greasy strains.
Ep. 028
Chemical transformation of one terpene into another at specific temperatures.
Ep. 028
A monocyclic monoterpene dominant in Afghani varieties with pain-killing properties.
Ep. 030
Sulfur-containing organic compounds (thiols) sometimes present as stabilizers in hydrocarbon solvents used for cannabis extraction.
Ep. 031
An analytical chemistry approach where the total mass of starting compounds is tracked through a process to account for all inputs, outputs, and transformations.
Ep. 031
An analytical chemistry technique where a known standard compound is added ('spiked') to a sample to identify unknown peaks in a spectrum.
Ep. 031
Hydrophobic waxy compounds present on the surface of cannabis trichomes that are insoluble in water but soluble in non-polar solvents like butane or hexane.
Ep. 033
One of two primary cannabinoid receptors in the endocannabinoid system, found predominantly in peripheral organs and immune cells (particularly the gut, spleen, and tonsils).
Ep. 035
A highly purified, crystalline form of tetrahydrocannabinolic acid (THCA) that appears as a white powder or crystal.
Ep. 040
Ongoing scientific disagreement over how to classify cannabis species, particularly whether 'indica' and 'sativa' as commonly used correspond to actual botanical taxa or are misnomers.
Ep. 041
Botanical classification for tall, thin-leafed cannabis drug plants from equatorial regions, commonly but incorrectly called 'sativas'. Properly Cannabis indica ssp. indica.
Ep. 041
Botanical classification for short, broad-leafed cannabis drug plants from Afghanistan, commonly called 'indicas'. Properly Cannabis indica ssp. afghanica.
Ep. 041
Programmed cell death induced by cannabinoids in cancer cells. THC and CBD can trigger apoptosis in tumor cells while sparing healthy cells, a selective toxicity.
Ep. 042
CB1 cannabinoid receptor, the most abundantly expressed G-protein-coupled receptor in the brain. Primary binding site for THC and anandamide.
Ep. 042
Theory that rosin pressing works as hot steam extraction, where moisture converts to steam under heat and pressure, carrying resin out of the plant.
Ep. 046
Purification process where solid transforms directly to vapor and recondenses as solid without liquid phase.
Ep. 047
The length of the alkyl side chain at the C3 position of cannabinoid molecules, which directly influences receptor binding affinity and psychoactivity.
Ep. 210
A semi-synthetic chemical process that converts cannabidiol (CBD) into delta-9 THC or other psychoactive cannabinoids using acid catalysis.
Ep. 210
Colony-forming units — the standard microbiological measurement used in cannabis compliance testing to quantify yeast, mold, and bacterial contamination.
Ep. 210
PFAS (per- and polyfluoroalkyl substances) that are ubiquitous environmental contaminants and a concern in cannabis processing, particularly regarding parchment paper, silicone mats, and other…
Ep. 210
Inductively Coupled Plasma Mass Spectrometry (ICP-MS), an analytical technique that ionizes samples in a plasma torch to detect trace metals by their mass-to-charge ratio and emission intensity.
Ep. 210
The use of radiation (gamma rays, X-rays, or electron beam) to sterilize cannabis that has failed microbial testing, reducing yeast, mold, and bacteria counts to pass regulatory thresholds.
Ep. 210
An atypical trichome morphology found in certain modern cultivars (especially Sherbet-derived genetics) where trichome heads are elongated or melted together rather than round, featuring thicker waxy…
Ep. 210
Parchment paper coated with Quilon (a myristic acid chromium-3 complex in isopropanol), which poses a potential contamination risk in rosin pressing because heat and pressure could oxidize chromium-3…
Ep. 210
The mechanism by which UVC light damages pest RNA, disrupting communication, instinctive behavior, and protein synthesis, making pests approximately 10 times easier to eliminate with follow-up…
Ep. 210
Chemical signaling molecules used for communication between organisms.
Ep. 210
Specialized cells located at the base of the trichome gland head, at the abscission layer where the head meets the stalk.
Ep. 210
A naturally occurring but extremely rare cannabinoid first isolated by Italian researchers, structurally similar to THC but with a seven-carbon (heptyl) tail instead of the standard five-carbon…
Ep. 210
Sulfur-containing volatile organic compounds present in cannabis at parts-per-million or parts-per-billion concentrations, responsible for the skunky/dank aroma.
Ep. 210
The structural wholeness of detached trichome heads, which determines how well volatile compounds like thiols and terpenes are preserved during post-harvest processing.
Ep. 210
The stress response mechanism where UVB radiation stimulates cannabis plants to produce additional resin and trichomes as a defensive measure, resulting in higher cannabinoid and terpene content.
Ep. 210
A naturally occurring butenolide compound found in wood smoke that stimulates seed germination, part of nature's mechanism to repopulate forests after fire events.
Ep. 055
The phenomenon where heavy metals present in cannabis plants bind to lipid (fat) fractions during extraction.
Ep. 052
The nutritional profile of hemp seeds and hemp seed oil, which are rich in protein, essential fatty acids, and calories.
Ep. 060
The protein content of hemp seeds, which provides a complete amino acid profile and is more economical and environmentally sustainable to produce than soybean protein, with hemp seed also containing…
Ep. 055
The University of Mississippi's federally licensed cannabis research program, which has been the sole legal grower of cannabis for research purposes in the United States since the 1960s.
Ep. 054
The study of chemical reactions that occur when cannabis concentrates contact heated dabbing surfaces such as titanium, quartz, ceramic, and silicon carbide at various temperatures.
Ep. 056
A portable analytical technique used by Steep Hill Labs that uses near-infrared spectroscopy to compare cannabis samples against a database of cataloged strain profiles, enabling rapid strain…
Ep. 060
The presence of unwanted substances (heavy metals, plant growth regulators, or other contaminants) in commercial cannabis nutrient and fertilizer products.
Ep. 052
The amplification of pesticide residues during cannabis extraction processes, where compounds present on plant material become concentrated in the final extract, posing heightened health risks…
Ep. 055
A genetics research project that analyzed hundreds to thousands of dispensary cannabis samples across multiple US states using genomic data to map the interrelatedness of modern cannabis varieties,…
Ep. 053, 055
Synthetic or natural chemicals used to modify plant growth patterns, often to increase bud density and yield in cannabis cultivation.
Ep. 052
The chemical process by which cannabis concentrate residues undergo polymerization (molecular cross-linking) on heated dab nail surfaces.
Ep. 052
A series of controlled experiments conducted by Skunkman Sam and Robert Connell Clarke around 2000, vaporizing pure THCA alone, then combined with terpene-rich resin, demonstrating that THC without…
Ep. 055
A scientific framework for understanding rosin pressing as a form of microscale steam distillation.
Ep. 052
The tendency of heavier sesquiterpenes like beta-caryophyllene, humulene, and caryophyllene oxide to survive drying, curing, and transport conditions that destroy lighter monoterpenes, giving aged or…
Ep. 055
The phenomenon whereby individual terpenes alter or modulate the psychoactive effects of THC and other cannabinoids, changing the character of the experience from sedating to stimulating depending on…
Ep. 055
The significant shortcomings in current cannabis analytical testing for terpenes, where labs typically test for only 8-12 known terpene compounds, leaving 70-80% of the terpene profile as 'unknown.
Ep. 056
A widespread error in cannabis industry literature that misquotes the boiling point of THC. The commonly cited figure of ~315 degrees Fahrenheit was actually measured under high vacuum (0.
Ep. 056
The observation that trichome density, terpene composition, and optimal micron grading vary depending on which part of the cannabis plant material is being processed, with different sections yielding…
Ep. 058
The American Herbal Pharmacopoeia monograph on Cannabis, edited by Roy Upton.
Ep. 066
Beta-caryophyllene is a sesquiterpene highly prevalent in most cannabis strains that acts as a CB2 receptor agonist, meaning it binds to and activates the CB2 receptor similarly to CBD.
Ep. 062
Chemical compounds produced when cannabinoids are broken down by the liver during first-pass metabolism.
Ep. 068
The process of determining the complete DNA sequence of the cannabis genome, enabling identification of genes responsible for specific traits like cannabinoid production, terpene profiles, and stress…
Ep. 066
The effort to establish uniform testing protocols and reference standards across cannabis testing laboratories.
Ep. 064
The early history of cannabis testing laboratories, which were initially sought out and established by the cannabis community itself rather than by regulators, in order to understand potency and…
Ep. 061
A genetic mutation where the cannabis plant's biosynthetic pathway stops at cannabigerol (CBG) without converting it to THC or CBD, resulting in ultra-low THC varieties.
Ep. 070
The concept that igniting or combusting cannabis destroys a significant portion of microbial contaminants detected in pre-combustion testing, raising questions about the real-world relevance of…
Ep. 064
A class of systemic fungicides including myclobutanil (Eagle 20), propiconazole, and tebuconazole used on cannabis.
Ep. 069
The phenomenon observed at the 2015 Emerald Cup where 7 out of 8 dry sift concentrate entries failed microbial testing, highlighting the vulnerability of mechanically separated trichome products to…
Ep. 064
The comprehensive testing program implemented by the Emerald Cup cannabis competition, where all entries are tested for cannabinoids, terpenes, pesticides, and microbials by partner labs like SC Labs.
Ep. 064
Fatty acid amide hydrolase (FAAH) inhibitors are compounds that block the enzyme responsible for breaking down anandamide, thereby increasing endocannabinoid levels.
Ep. 070
The relationship between a plant's DNA (genotype), its observable physical characteristics (phenotype), and its chemical profile (chemotype).
Ep. 066
The distinction between beneficial and harmful microorganisms present in cannabis products.
Ep. 065
A broad patent filed by GW Pharmaceuticals claiming all cannabinoids for use in neuroprotection, effectively attempting to monopolize an entire therapeutic category of cannabis-based treatments.
Ep. 068
The genetic variation within hemp (fiber/seed) cannabis populations, which genomics research has revealed to be significantly less diverse than drug-type cannabis varieties.
Ep. 066
Dr. John W. Huffman is the chemist who invented the JWH series of synthetic cannabinoids for laboratory research purposes.
Ep. 070
A biotechnology company (parent company Courtagen) that applies DNA sequencing technology to cannabis, providing genetic analysis for strain identification, pathogen testing, and cannabinoid pathway…
Ep. 068
The presence of bacterial and fungal spores in cannabis products, which are ubiquitous in the environment and particularly problematic when products are stored in plastic bags with residual moisture.
Ep. 064
The practice of applying dairy industry microbial testing standards to cannabis products as a regulatory proxy, since no cannabis-specific testing standards existed.
Ep. 064
A graphical calculation tool showing the relationships between temperature, pressure, and boiling points of various compounds.
Ep. 069
The observation that sun-grown outdoor cannabis of the same strain can produce a higher volume of terpenes compared to indoor-grown plants, suggesting that natural sunlight and environmental stresses…
Ep. 066
The health risk posed by inhaling pesticide residues through smoking or vaporizing cannabis, which is fundamentally different from dietary exposure.
Ep. 066
The mechanism by which terpenes increase cannabinoid receptor expression in cells.
Ep. 062
A quality assurance method where a centralized reference sample with known values is sent to multiple testing laboratories to verify their accuracy and reproducibility.
Ep. 064
SC Labs (SC Laboratories) is a cannabis testing laboratory based in Santa Cruz, California, that was responsible for testing entries at the Emerald Cup.
Ep. 065
A method of applying pesticides and fungicides directly to crop seeds so the chemicals are systemically absorbed into the plant as it grows, eliminating the need for foliar sprays.
Ep. 066
Synthetic cannabinoids (like JWH compounds and Spice products) are laboratory-created molecules that bind to cannabinoid receptors but are not thermally stable like natural phytocannabinoids.
Ep. 070
The breakdown and alteration of terpene molecules during cannabis processing, caused by microbial activity, heat, oxidation, and mechanical handling.
Ep. 070
The study of safe dosage levels and potential risks when inhaling concentrated terpenes, particularly at elevated temperatures on a dab nail.
Ep. 062
The process by which terpenes, particularly limonene, react with oxygen in the air to form hydroperoxides and endoperoxides.
Ep. 062
The principle that terpenes are natural solvents capable of dissolving cannabinoids and other plant compounds.
Ep. 065
The chemical breakdown of pesticide molecules when exposed to high temperatures during smoking or dabbing, producing toxic byproducts that are more harmful than the original compounds.
Ep. 069
The technical challenge of preventing hemp seed oil from going rancid due to its high polyunsaturated fatty acid content, requiring improved stabilization methods similar to those used for rapeseed…
Ep. 071
The dual-phase pharmacological response to THC where it first stimulates and then depresses, a fundamental property of THC that occurs even with pure THC and is modulated by terpenes and other…
Ep. 072
A cannabis effect profile, typically associated with Haze-type strains, where each additional dose continues to increase the perceived high without hitting a plateau or ceiling, producing a clear,…
Ep. 072
The misconception that decarboxylation only happens at elevated temperatures, when in reality it is a continuous process occurring at all temperatures including room temperature, during curing, and…
Ep. 072
The differential behavior of volatile monoterpenes (C10) and heavier sesquiterpenes (C15) during hash curing and aging.
Ep. 074
The relationship between growing elevation and cannabis resin production, where higher altitudes expose plants to different UV bands (particularly UVB) that can influence trichome development and…
Ep. 076
The theory that ultraviolet radiation (particularly UVB) influences trichome development and resin production in cannabis, potentially as a plant defense mechanism.
Ep. 076
A degradation product found in aged hashish, formed through the chemical transformation of terpenes (particularly myrcene) during the curing and aging process.
Ep. 076
The variation in microbial populations and pest pressure at different altitudes, where higher elevations have different micro-biological life and reduced pest pressure compared to lowland growing…
Ep. 076
The emerging cannabis testing laboratory ecosystem in Jamaica, beginning to offer cannabinoid, terpene, and contaminant testing as the island's legal cannabis industry developed…
Ep. 077
The pharmacological action of CBD on serotonin 5-HT1A receptors, which contributes to its anxiolytic and anti-depressant effects independent of the endocannabinoid system.
Ep. 080
The theory that some chronic conditions (migraines, fibromyalgia, IBS) result from deficient endocannabinoid tone, and that supplementing with phytocannabinoids can restore balance to a depleted…
Ep. 080
The role of the endocannabinoid system in maintaining physiological balance (homeostasis) across body systems, and how supplemental phytocannabinoids can support this equilibrium when endogenous…
Ep. 080
The use of hemp-based plastics as feedstock for 3D printing, allowing the creation of sculpted objects from renewable hemp material.
Ep. 083
The acid forms of THC and CBD found in raw cannabis before decarboxylation, which have their own distinct therapeutic properties separate from their activated counterparts.
Ep. 084
A landmark event at the National Institutes of Health titled 'Marijuana Cannabinoids: A Neuroscience Summit' where heads of NIH, NIMH, and NIDA endorsed cannabinoid research.
Ep. 086
The lock-and-key model of how cannabinoids interact with the endocannabinoid system, where CB1 and CB2 receptors are the 'locks' and molecules like THC and CBD are the 'keys' that open them to…
Ep. 088
Cannabis has a uniquely challenging genome to sequence due to its high AT content (approximately 65%), diploid nature requiring sequencing of both maternal and paternal chromosomes, and the relative…
Ep. 089
DNA-based testing to determine the sex of cannabis seedlings before they express physical sex characteristics, allowing cultivators to identify and remove males early, saving weeks of growing time…
Ep. 089
The use of blockchain technology to create immutable records of cannabis genetic sequences, preventing fraud in strain identification and creating an open-source, tamper-proof database of cultivar…
Ep. 089
The widely cited boiling point for THC was measured under high vacuum (0.5 torr) by researcher Mechoulam, not at atmospheric pressure.
Ep. 091
The process of applying heat to convert THCA to THC and CBDA to CBD in medical preparations.
Ep. 092
A solventless method of converting THC to CBN (cannabinol) using controlled heat, oxygen exposure, and time.
Ep. 094
THC (tetrahydrocannabinol) has extremely low water solubility, meaning it does not dissolve readily in water.
Ep. 098
Cannabis genetics originating from Manchuria (northeast China/Korea border region) that represent a distinct landrace lineage.
Ep. 100
The concept that hemp and drug cannabis exist on a continuum rather than as distinct species, with landraces historically used for both fiber and drug purposes.
Ep. 100
The scientific study of genetic variation within and between cannabis populations, using genomic tools to identify biodiversity hotspots, trace evolutionary history, and target specific genes like…
Ep. 102
A genetic variant of the Fatty Acid Amide Hydrolase (FAAH) enzyme that is less efficient at breaking down anandamide, positively correlated with higher happiness levels in human studies.
Ep. 102
Research by John McPartland (2005) showing that a single osteopathic spinal manipulation treatment increased serum anandamide levels by 168% over baseline, suggesting physical manipulation of the…
Ep. 102
The thermal stability characteristics of CBDA crystals compared to CBD crystals, where CBDA readily decarboxylates like THCA but can be melted since its melting point is below its decarboxylation…
Ep. 108
The unnecessary and potentially harmful addition of broad-spectrum antimicrobial agents like triclosan (a biosynthesis inhibitor) to consumer soaps, which contributes to antibiotic resistance without…
Ep. 110
The study of terpene synthase enzymes from a genomic perspective - identifying, cloning, and characterizing the genes responsible for producing terpenes in cannabis.
Ep. 114
Enzymes in cannabis that produce multiple terpene products rather than a single compound.
Ep. 114
A discovery that certain cannabis strains contain a CBD synthase gene that is present in the genome but non-functional, meaning it cannot produce CBD.
Ep. 114
A broad patent covering cannabis plants that produce propyl (Varin) cannabinoids such as THCV and CBDV above 2% of total dry weight.
Ep. 115
The phenomenon where pre-loading with CBD before consuming THC produces a dramatically amplified psychoactive experience, possibly through CB1 receptor upregulation or altered endocannabinoid tone.
Ep. 119
The question of whether CBD requires decarboxylation (conversion from CBDA) to be therapeutically active, given that CBD does not produce intoxicating effects regardless of its acid/neutral form.
Ep. 119
Chemical process demonstrated by Mechoulam and co-workers showing that CBD can be converted to THC using acid catalysis.
Ep. 124
Research finding that THCA (non-decarboxylated THC) can penetrate biological membranes in certain conditions but 'naked' THCA cannot due to molecular size and polarity.
Ep. 123
The scientific debate over whether CBD converts to THC and other cannabinoids (CBN, etc.) when exposed to gastric acid in the human stomach.
Ep. 126
A chemical mechanism by which CBD is converted to THC when exposed to acidic conditions.
Ep. 126
A weekly email newsletter from the International Association for Cannabinoid Medicines (info@cannabis-med.org) that compiles the latest cannabinoid research studies.
Ep. 127
A Cambridge University study demonstrating that cannabis extract rich in CBG (cannabigerol) and devoid of THC increases food intake in rats, suggesting CBG may have appetite-stimulating properties…
Ep. 127
The practical upper limit of THCA content in cannabis flower, observed at approximately 30-34% by experienced labs. Claims above this range (e.g., 39%) should be verified by multiple labs.
Ep. 125
Essential fatty acids (EFAs) from hemp seed oil serve as precursors for endogenous cannabinoids like anandamide and 2-arachidonoylglycerol (2-AG).
Ep. 125
Industrial hemp seed processing using mechanical presses to extract oil, then sifting the seed cake to separate protein powder.
Ep. 133
The theory that prohibition inadvertently eliminated CBD from cannabis varieties.
Ep. 134
Skunkman Sam's botanical classification framework arguing that both indica and sativa subspecies contain wide-leaf and narrow-leaf varieties, challenging the popular oversimplification that equates…
Ep. 135
The phenomenon where fresh cannabis is high in volatile monoterpenes (which evaporate quickly) while aged cannabis becomes proportionally higher in sesquiterpenes (which are heavier and persist…
Ep. 135
The comparison between seeded and seedless (sinsemilla) cannabis in terms of cannabinoid production.
Ep. 135
The chemical process by which glycol-based diluents (propylene glycol, polyethylene glycol) commonly used in vape pens and e-cigarettes thermally decompose at high temperatures to produce toxic…
Ep. 138
The safety concerns around substances used to thin cannabis concentrates for use in vape pen cartridges.
Ep. 138
Dr. Ethan Russo's presentation at the Cannabis Hemp Conference in Vancouver covering terpene science, cannabinoid breakdowns including THCV and CBDV, and citing specific scientific studies on their…
Ep. 140
India contains enormous cannabis genetic diversity across its vast geography, with 86 different languages, 130 dialects, and plants ranging from 3-foot Afghan-type hash plants grown on Bangalore…
Ep. 140
Scientific discussion about why CBD in a carrier oil (coconut/MCT) does not appear to convert to THC in the human stomach despite in-vitro evidence, explained by the oil-phase protection theory: CBD…
Ep. 129
The challenge of producing consistent cannabis-infused topical products, requiring testing of the extract's cannabinoid concentration BEFORE formulation rather than only testing the final product,…
Ep. 130
The principle that essential oils and terpenes, while beneficial in low doses, can cause intoxication, sensitization, lung irritation, or skin reactions at high concentrations, particularly when…
Ep. 130
Formal clinical studies on cannabigerol (CBG), a non-intoxicating cannabinoid. Dr.
Ep. 186
The ability of cannabigerol (CBG) to reduce anxiety both on its own and when combined with THC.
Ep. 186
The association between terpinolene-rich narrowleaf drug cultivars and anxiety induction in some users.
Ep. 186
Shimadzu is a major Japanese scientific instrument manufacturer that sells a full suite of analytical equipment for cannabis testing laboratories worldwide, including HPLC (rebranded as the 'Cannabis…
Ep. 161
A cannabis sensory evaluation methodology created by Max Montrose of the Trichome Institute in 2014.
Ep. 163
A cannabis education company founded by Max Montrose dedicated to mitigating misinformation in the cannabis industry through research-based courses, sensory training programs, and the Interpening…
Ep. 163
The application of sommelier-style trained sensory evaluation to cannabis, borrowed from the wine industry.
Ep. 163
The significant overlap in terpene chemistry between hops (Humulus) and cannabis (Cannabis), both members of the Cannabaceae family.
Ep. 163
An effort to authenticate and certify the genetic identity of OG Kush and related cannabis varieties.
Ep. 163
The scientific study of how and where terpenes accumulate in the cannabis plant.
Ep. 163
The emerging scientific discipline studying the complexity of cannabis flavors and aromas. With well over 100 terpene types identified, researchers are mapping where specific aromatic notes originate.
Ep. 163
The chemical process of converting CBD isolate to delta-8 THC using acid catalysis. The acid treatment converts CBD to THC in the delta-8 configuration rather than naturally occurring delta-9.
Ep. 164
A semi-synthetic cannabinoid production method where CBDV isolate is chemically converted to THCV using acid-catalyzed ring closure. Snapdragon CBD (Tennessee) marketed a THCV isolate that Dr.
Ep. 164
Safety concerns surrounding commercially available delta-8 THC products.
Ep. 164
A chemical compound produced as a byproduct during the acid-catalyzed conversion of CBD to delta-8 THC.
Ep. 164
A Tennessee-based company that appeared on the Adam Dunn Show selling THCV isolate and other novel cannabinoid products. Dr.
Ep. 164
The observation that mushrooms contain a wide array of terpenes, many shared with cannabis.
Ep. 176
The systemic issue in legal cannabis dispensaries where menus display products primarily by THC percentage (and sometimes CBD), training consumers to chase high potency numbers rather than seeking…
Ep. 177
The scientific distinction between terpenes (simple hydrocarbon molecules like myrcene, limonene, pinene) and terpenoids (terpenes that have been chemically modified through oxidation or other…
Ep. 177
The chemical breakdown of cannabinoids over time through oxidation, heat, light, and microbial activity. THCA degrades to THC through decarboxylation, then further to CBN through oxidation.
Ep. 177
The observation that mixed-light (greenhouse with supplemental lighting) cannabis can produce a wider spread of minor cannabinoids including upwards of 5% THCV, compared to purely indoor or outdoor…
Ep. 177
A pioneering cannabis scientist who worked with Bubbleman on early cannabinoid and terpene research.
Ep. 177
Colony-forming unit (CFU) testing limits vary wildly between US states, creating inconsistent safety standards.
Ep. 191
AI-powered virtual budtender tools that recommend cannabis strains based on user preferences and known effects.
Ep. 191
The discovery that cannabis trichome crystals carry an inherent electrical charge, which can be exploited for electrostatic separation.
Ep. 197
A class of sulfur-containing aromatic molecules found in cannabis that contribute to pungent 'skunky', garlicky, and gassy aromas.
Ep. 199
The emerging understanding that cannabis aroma and effect are shaped by compounds beyond the standard terpene panel, including volatile sulfur compounds (VSCs), polyphenols, and other minor molecules…
Ep. 199
How environmental factors including regional growing conditions affect the chemical expression and aroma profile of cannabis cultivars, similar to how terroir affects wine grapes.
Ep. 199
The study of cannabis trichome structure using scanning electron microscopes (SEM), which produce highly detailed images of glandular trichome heads, stalks, and surface features at magnifications…
Ep. 203
Cannabis research company founded by David Watson (Skunkman Sam) in the Netherlands.
Ep. 222
The International Hemp Association, co-founded by David Watson and Robert Connell Clarke in the Netherlands.
Ep. 222
Rob Clarke's 1981 book 'Marijuana Botany' published by And/Or Press in Berkeley. Originated when a friend-of-a-friend noticed Clarke's research at the publisher's office and suggested he write a book.
Ep. 222
Volatile organic compounds (VOCs) responsible for the distinctive aromas of cannabis beyond terpenes.
Ep. 228
Sulfur-containing aromatic compounds in cannabis responsible for the 'dank' and 'gassy' smell profiles.
Ep. 228
A standardized vocabulary system for describing cannabis aromas by breaking complex smell profiles into constituent aromatic elements using universally understood reference points (black pepper,…
Ep. 228
Chemical reactions in which a prenyl group (five-carbon isoprene unit) is attached to aromatic compounds, creating complex hybrid molecules like prenylated flavonoids and terpenophenolics.
Ep. 228
Laboratory testing of cannabis plants for viroids -- small, circular RNA pathogens that can devastate crops.
Ep. 231
The effort to document, preserve, and maintain the genetic lineages of legacy cannabis cultivars before their histories are lost.
Ep. 232
The foundational Chemdog genetic line originating from a bag of exceptional cannabis acquired at a Grateful Dead concert in 1991.
Ep. 247
A highly sought-after OG Kush phenotype known for its potent effects and distinctive terpene profile, maintained by the anonymous breeder known as OG Ghost.
Ep. 247
A deeply purple cannabis cultivar created by Rev Fuji, a 1990s-era cultivator known for his purple genetics breeding program.
Ep. 247
Cannabis-infused drinks using nano-emulsification technology to create stable, fast-acting, tasteless cannabinoid formulations in beverages.
Ep. 252
Research showing CBDA (cannabidiolic acid) is orders of magnitude (potentially 1000x) more bioavailable than CBD, with unique pharmacology targeting TRPV and PPAR receptors.
Ep. 252
Application of classical Mendelian genetics principles (dominant/recessive traits, chromosomal inheritance, meiosis) to systematic cannabis breeding, as opposed to the prevalent pheno stumbling…
Ep. 258
First university study from India analyzing 58 samples of hand-rubbed charas from 20 regions of the northwest Himalayas, revealing extraordinary cannabinoid diversity including a sample with 30.
Ep. 259
A naturally occurring ring formation of terpenes that separates to the top surface of aged hash stored in refrigerated jars over years, with THC settling to the bottom, demonstrating long-term…
Ep. 256
The presence of tiny plastic particles or fibers in cannabis extracts, potentially introduced through rosin bag blowouts, water line materials, or other processing equipment.
Ep. 211
Sulfur-containing organic molecules (thiols and thiolates) present in cannabis at trace levels that contribute disproportionately to pungent, skunky, gassy, and cheese-like aromas despite being…
Ep. 211
A chemical reaction where residual sulfur in cannabis extracts converts THC to hexahydrocannabinol (HHC) during distillation.
Ep. 211
A process that creates ultra-small (sub-200 nanometer) droplets of cannabis oil suspended in water using high-shear mixing or microfluidizers, dramatically increasing bioavailability and enabling…
Ep. 212
The chemical degradation of CBD through oxidation that produces a pink-colored compound called CBD hydroxyquinone (HU-331), indicating the CBD is no longer active.
Ep. 212
A measurement of the available water in a substance that indicates microbial growth potential, distinct from simple moisture content.
Ep. 211
Strategies to pass microbial testing without irradiating cannabis, which degrades terpenes and cannabinoids.
Ep. 215
The study of how human olfactory perception interacts with cannabis aromatic compounds, including the theory that certain terpene profiles like Zkittlez may be universally perceivable by most people…
Ep. 213
The raw, unheated forms of cannabinoids found in living cannabis plants, such as THCA and CBDA.
Ep. 216
The significant discrepancy between the number of terpenes actually present in cannabis and the limited panel of terpenes that commercial testing laboratories can detect.
Ep. 216
A rare sesquiterpene found in certain cannabis cultivars, notably Whitethorn Rose.
Ep. 216
A visual lab report format developed by Ryan Lee (Chimera) for SC Labs that uses colored graphs to present cannabinoid and terpene data in an intuitive, accessible way.
Ep. 216
A class of terpenes with 15 carbon atoms (three isoprene units), including beta-caryophyllene and alpha-humulene.
Ep. 216
A class of terpenes with 10 carbon atoms (two isoprene units), including limonene, myrcene, and pinene.
Ep. 217
The balanced 1:1 proportion of terpinolene to ocimene found in Sweet Skunk cannabis, which creates a distinctive sweet, rounded terpene profile.
Ep. 217
The ability of cannabinoids to protect neurons from damage caused by oxidative stress, glutamate toxicity, and inflammation.
Ep. 217
A novel use of crystalline THCA to create holographic structures that function as non-toxic indicators for product integrity verification.
Ep. 219
Sulfur-containing aromatic compounds found at trace levels in cannabis that contribute to the characteristic 'gassy,' 'skunky,' and pungent aromas.
Ep. 218
A broad class of carbon-based molecules that easily evaporate at room temperature, encompassing terpenes, thiols, esters, and other aromatic compounds in cannabis.
Ep. 218
A laboratory document reporting the chemical composition of a cannabis sample, including cannabinoid potency, terpene profile, and compliance testing for contaminants.
Ep. 216
A dose-dependent phenomenon where a substance produces opposite effects at low versus high doses.
Ep. 216
Laboratory analysis of cannabis flower for leftover nutrients from the growing process that can affect taste, smoothness, and consumer safety.
Ep. 219
Near-infrared spectroscopy is an analytical technique that uses light absorption to measure the vibration of organic molecules, enabling rapid identification and quantification of chemical compounds…
Ep. 221
A compact NIR spectroscopy hardware unit manufactured by Si-Ware Systems, featuring a miniaturized chip with 150 patents.
Ep. 221
A botanical classification for cannabis plants with narrow leaflets, long internodes, and extended flowering periods, historically associated with equatorial landraces from Colombia, Mexico,…
Ep. 222
A laboratory analytical technique that separates, identifies, and quantifies chemical compounds in a liquid mixture by pumping the sample through a column of solid adsorbent material.
Ep. 221
Application of near-infrared spectroscopy to measure psilocybin and total alkaloid content in psychedelic mushrooms, enabling rapid potency screening and selective breeding of high-psilocybin…
Ep. 221
The theory that the subjective effects of cannabis arise primarily from the ratio between THC and aromatic volatile compounds (terpenes, flavonoids) rather than from THC potency alone.
Ep. 222
A system of classifying cannabis varieties based on their chemical profiles (cannabinoids, terpenes, enzymes) rather than morphological traits alone.
Ep. 222
A class of sulfur-containing aromatic compounds found in cannabis that contribute to pungent, gassy, and skunky aromas.
Ep. 228
Organosulfur compounds containing a sulfhydryl (-SH) group, found in cannabis at trace levels.
Ep. 228
A post-translational biochemical reaction in which a prenyl group (derived from isoprene units) is transferred to another molecule such as an amino acid.
Ep. 228
A class of aromatic volatile organic compounds that contribute sweet, fruity notes to cannabis.
Ep. 228
The full spectrum of volatile organic compounds responsible for cannabis aroma, encompassing terpenes, thiols, thiolates, esters, aldehydes, and other trace compounds.
Ep. 228
The minimum concentration of a volatile compound required for detection by the human nose.
Ep. 228
Delta-9 THC produced through chemical conversion of CBD extracted from hemp, exploiting the 2018 Farm Bill's definition of hemp as cannabis containing less than 0.3% THC by dry weight.
Ep. 226
The application of genomics to cannabis breeding, enabling identification of genes responsible for specific terpene profiles, cannabinoid ratios, and volatile compound production.
Ep. 226
An analytical chemistry technique used to separate and identify volatile compounds in cannabis.
Ep. 226
The biochemical pathway through which the amino acid cysteine donates sulfur to form volatile sulfur compounds in cannabis.
Ep. 228
Molecules with the same chemical formula as THC or other cannabinoids but with different structural arrangements.
Ep. 226
A portable near-infrared spectroscopy device built on the Neospectra platform that provides rapid, non-destructive testing of cannabis flower, extracts, and plant tissue for cannabinoids, terpenes,…
Ep. 231
The study of the relationship between human cultures and cannabis plants, encompassing how communities select, breed, distribute, and use cannabis varieties within their social, economic, and…
Ep. 232
The public health risk posed by counterfeit or low-quality vape cartridges made from brass alloys containing approximately 3% lead, which leaches into cannabis oil and is inhaled by consumers,…
Ep. 234
The systemic discrepancy between THC percentages printed on cannabis product labels and actual cannabinoid content, driven by selective sample testing, lab shopping, and the practice of mixing trim…
Ep. 234
A newly discovered class of nitrogen-containing flavonoid compounds found in cannabis leaves, identified through two-dimensional liquid chromatography (HILIC x reverse-phase), representing rare…
Ep. 235
Water-soluble pigmented compounds, including flavonoid glycosides and the newly identified flavo-alkaloids, that dissolve into the water phase during ice water hash extraction, producing the…
Ep. 235
An advanced analytical chemistry technique combining hydrophilic interaction chromatography (HILIC) with reverse-phase chromatography (LCLC) to separate and identify complex, previously undetectable…
Ep. 235
A nanotechnology-based authentication method using silicone stamps with periodic nanostructures that create visible holograms through light diffraction.
Ep. 239
Crystalline tetrahydrocannabinolic acid, the non-psychoactive precursor to THC found naturally in cannabis trichomes.
Ep. 239
A quality assurance system ensuring cannabis extracts and concentrates maintain proper storage temperatures throughout the supply chain from producer to consumer.
Ep. 239
Color produced by nanostructures that interfere with specific wavelengths of visible light rather than by pigments or dyes.
Ep. 239
A newly discovered cannabinoid consisting of two CBG molecules linked by a methylene (CH2) bridge, forming a symmetrical dimer structure. Identified by a team of 14 Italian researchers.
Ep. 242
A potentially explosive compound formed when concentrated limonene reacts with oxygen in air, inserting an oxygen molecule between carbon and hydrogen bonds.
Ep. 242
The systematic study of how individuals perceive cannabis aromas and flavors, requiring practitioners to first identify their personal sensitivities (hyper-perceptions of certain compounds) and blind…
Ep. 244
Sulfur-containing volatile compounds responsible for the pungent, skunky, garlicky, and oniony aromas in cannabis. N-butanethiol-1 (found in actual skunk spray) is one key thiol.
Ep. 245
Beneficial fungi living within plant tissues (endophytes) that are stored in seeds and influence the plant's secondary metabolite production, including trichome and terpene expression.
Ep. 245
The hair-like reproductive structures of female cannabis flowers designed to catch pollen for seed production. Non-glandular — they do not contain cannabinoids or produce resin.
Ep. 244
The process by which beneficial microbes like Trichoderma and Beauveria bassiana colonize the internal vascular transport system (xylem) of a plant, rather than just living on surfaces or in the soil.
Ep. 246
The study of the complete ionome (all ions and elemental composition) of an organism, used to understand how mineral and heavy metal levels correlate with plant health, pathogen susceptibility, and…
Ep. 246
The two-spotted spider mite (Tetranychus urticae) possesses the smallest known arthropod genome (~90 megabase pairs) yet has evolved extraordinary adaptability including 1,000+ host plant species and…
Ep. 249
Parasitic fungi that infect and control insect behavior, consuming the host from the inside while manipulating it to climb to high points for optimal spore dispersal.
Ep. 249
A technology that reduces cannabinoid molecules to nano-scale particles (typically under 100nm) allowing them to be uniformly suspended in water-based beverages, enabling consistent dosing, shelf…
Ep. 252
The dietary ratio of omega-6 to omega-3 fatty acids, which are the master precursors that naturally feed the endocannabinoid system.
Ep. 253
The phenomenon where offspring of genetically dissimilar parents exhibit enhanced vigor, size, fertility, and overall performance compared to either parent.
Ep. 256
In cannabis breeding, the gradual loss of desirable traits (alleles) from a gene pool through uncontrolled selection, chemical-assisted cultivation, and narrowing of genetic diversity, making those…
Ep. 256
A plant hormone used in cannabis breeding to stress female plants into producing male pollen (feminized seed production) and to stimulate germination of old or dormant seeds.
Ep. 256
A newly discovered nitrogen-containing compound isolated from cannabis flowers by Korean researchers.
Ep. 257
A compound class combining flavonoid structural features with nitrogen atoms characteristic of alkaloids.
Ep. 257
Hydrogenated THC, created by adding hydrogen atoms to the THC molecule.
Ep. 257
Laboratory-created compounds designed to bind to cannabinoid receptors (CB1 and CB2).
Ep. 257
Sulfur-containing volatile compounds present in cannabis at trace levels (nanograms per kilogram) that contribute significantly to aroma perception.
Ep. 257
The application of Gregor Mendel's laws of genetics to cannabis breeding, showing that cannabinoid type and terpene profile follow predictable dominant/recessive inheritance patterns.
Ep. 258
The discovery that cannabis terpene profiles are inherited as complete sets (cassettes) rather than individual terpenes segregating independently.
Ep. 258
A cheap, simple chromatography method using silica-coated plates and solvent baths to separate and visualize cannabinoid profiles from plant leaf extracts.
Ep. 258
The cell division process that creates haploid sex cells (pollen and ova) with one set of chromosomes instead of two.
Ep. 258
A class of volatile aroma compounds found in cannabis that are identical to those producing fruit flavors in nature.
Ep. 258
A non-psychoactive cannabinoid rarely found in high concentrations in modern cannabis. A Himalayan hashish study found a sample containing 30.6% CBC, the highest natural concentration documented.
Ep. 259
A sophisticated analytical technique combining liquid chromatography with two stages of mass spectrometry.
Ep. 257
The bulbous resin glands on cannabis flowers that contain the plant's cannabinoids, terpenes, and flavonoids.
Ep. 004
The specific ratio and concentration of different cannabinoids (THC, CBD, CBN, CBG, CBC, etc.) present in a cannabis strain or extract.
Ep. 003
Hemp seeds contain all nine essential amino acids that the human body requires but cannot produce.
Ep. 006
The thin membrane connecting the trichome head (containing cannabinoids and terpenes) to its stalk.
Ep. 007
The outer waxy layer surrounding the trichome head that protects cannabinoids and terpenes from degradation.
Ep. 007
The complete chemical fingerprint of cannabinoids present in a given cannabis sample, including ratios of THC, CBD, CBN, CBG, and other minor cannabinoids.
Ep. 007
Laboratory analysis of cannabis extracts to detect residual solvents such as butane, propane, hexane, and other hydrocarbons used in extraction.
Ep. 007
Laboratory analysis measuring the total microbial count (bacteria, mold spores, and other microorganisms) on cannabis flowers and extracts.
Ep. 008
High-magnification photography of cannabis trichomes used to study gland head development, maturity, and quality.
Ep. 011
The largest and most cannabinoid-rich type of cannabis trichome, featuring a visible stalk topped by a spherical gland head containing cannabinoids, terpenes, and flavonoids.
Ep. 011
The application of Next Generation (Next Gen) sequencing technology to analyze the genomes of cannabis varieties.
Ep. 013
The formal two-part naming system for organisms applied to cannabis classification.
Ep. 013
The systematic documentation of how specific cannabinoid and terpene combinations at particular ratios produce different effects.
Ep. 014
The process of creating consistent, repeatable cannabis products by controlling trichome purity, terpene profiles, and cannabinoid ratios.
Ep. 017
A cannabis science company focused on terpene research and resin analysis. Kay from Trichome Technologies is regarded as a deeply knowledgeable expert on terpene science and cannabis resin quality.
Ep. 023
Scientific terms describing the water-interaction properties of terpenes and cannabinoids. Hydrophilic compounds attract and pull in water, while hydrophobic compounds repel water.
Ep. 025
The practice of adding separated terpenes back into hash or concentrate to restore or enhance flavor and effect profiles.
Ep. 025
A technique where reducing atmospheric pressure lowers the boiling point of water and other solvents, allowing extraction and purging at much lower temperatures.
Ep. 030
The process by which THC-A molecules in dried trichome heads begin forming crystalline lattice structures over time, similar to rock candy formation.
Ep. 028
The phenomenon where the dominant terpene profile of cannabis changes over months of curing as more volatile terpenes evaporate and less volatile ones become dominant.
Ep. 030
The ongoing debate within the cannabis community about the distinction between natural genetic modification through breeding (crossing male and female plants) and artificial chemical-level genetic…
Ep. 029
Beta-caryophyllene is one of the most volatile terpenes found in cannabis, so easily airborne that it can breach through plastic containers.
Ep. 027