// Definition
The dual physicochemical nature of cannabis trichome glands: their waxy outer membrane is simultaneously hydrophobic (water-repelling) and oleophilic (oil-attracting), yet the internal structure depends on water molecules for integrity. This balance keeps the trichome intact on the living plant, but when heat vaporises the structural water, the entire lipid bilayer disintegrates, releasing cannabinoid and terpene contents.
// From the Episode
Mark Scialdone explained why moisture content in starting material matters for rosin pressing. The trichome capsids are composed of a lipid bilayer held together by both hydrophobic and hydrophilic interactions — the waxy components repel water externally while requiring water molecules internally for structural organisation. When heat is applied, internal water vaporises, the structures “blow apart,” and their contents are released. This also explains why frozen trichomes shatter and why bone-dry material may not press well.
// Source
Ep. 025 The ROSINTECH Episode →