// Science · Glossary

Pesticide Concentration in Extracts

⚗️ Science First mentioned: Ep. 055

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 especially when heated to dabbing temperatures.

Mark Scialdone warned that pesticides concentrated in extracts may thermally degrade at nail temperature, specifically that Eagle 20 (myclobutanil) likely gives off cyanide when heated. Tony Verzura described how resin farmers were the first to notice pesticide contamination because they were isolating and examining the resin closely. The panel discussed the Denver Post article about Mahatma extracts pulled from shelves for pesticide contamination. Rob Clarke noted even in the Netherlands with 30 years of quasi-legal markets, 54% of coffee shop samples tested positive for pesticides or fungicides.

Ep. 055 Hash Church LIV 54