I also have a question about long cook times. I always let mine go over night for a total of 10-12 hours. They turn out great, but I have heard oxidation occurs when you cook it for long periods exposed to fresh air. This causes the THC to break down and be less potent.

Does anyone have any factual evidence of this? I've looked but can't find anything. I heard about this on this forum under one of the glycerine tincture threads.

So I was thinking I could just cook it in a mason or bell jar with the lid on but not screwed tight so hot air can escape and fresh air can't get in.

I usually stir my mix every hour or so for the first 4 hours then go to sleep for the rest. Instead I could tighten the lid for a few seconds and shake it, or I could just skip stirring it up. I think not stirring would result in hot spots though and some herb could be damaged. Although if that was the case then letting it cook while I slept would be detrimental to it.

Any advise on these things would be greatly appreciated I'd love to try something new and suddenly have my caps super potent!