How To Use Progressive Web App aka PWA On 420 Magazine Forum
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That temperature for that long would kill off the THC; however 250*F for 27 minutes works very well for me.
Just don't trust oven thermostats; verify the proper temperature is being hit.
Based on studies done by the Department of Pharmacy, University of Siena, Italy and Plant Metabolomics group, Institute of Biology, Leiden University, The Netherland, preheating the plant material at 145C/293C for 30 minutes severely reduces the plant's terpene profile. The research team does not recommend preheating.
Hwever, depending on the oil's intended use, if you wish full synergistic effect of THC, CBD and terpenes, a low-slow heating method is advised by the researchers. If you are only interested in the THC effect, then you oven decarb.
You can come to your own conclusion by reading the research notes and charts in PDF @
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