Donvito
New Member
The chart isn't completely fake, but it is misleading because it leaves out some important information. If they extended chart to 2 hours it would show a higher peak level of THC at 230 F after 110 minutes than shorter time at higher temps. The other thing chart doesn't mention is how much CBN is created at temps above 230 F. Last fall one of our members shared the Dutch study that found 230 F to be ideal temp. I found study by GW Pharmaceuticals that confirms it (or actually 220 F for 2 hours, they didn't test 230). It also showed how much CBN gets produced. At 220 for 2 hours you get 98% conversion of THC (i.e. 2% THCA left) and 3% of THC degraded to CBN. At 250 you can decarb 99% of THC in 1 hour with 4% CBN, but if you go any longer the CBN rises rapidly. At 280 you get 100% conversion by .5 hours but CBN is at 6% but a few minutes longer and you get double digits. Keep in mind that THC keeps degrading until it cools, so just removing it from heat doesn't stop it. GW actually included data up to 4 hours. I wish they had tested temps below 220. What neither study mentions is how much terpenes are boiled off at those high temps. Decarbing at 250 isn't bad if you stop soon enough and absolutely do not go over 250, but 230 is better.
Thank you so much for the details.
So the method of bud in a oven bag. Then 230f for 110m.
With the alcohol extraction/evaporation method in a rice cooker; Does this heat cause THC/CBN conversion issues or does a rice cooker not reach a high enough temperature?
Thank you once again
Enjoy the weekend.