One more update on this topic. I decided that my Green Dragon liqueur had definitely lost potency over time. As I mentioned in my last post on Nov-29, after I had done the other experiments using 1/2-ounce shots, I took a full one-ounce shot. When I first made the Green Dragon liqueur several months ago, a one-ounce shot was a very very strong dose. But that last one-once shot didn't feel very strong to me. It was more of a body buzz and not as enjoyable. A couple of days ago, I took another one-ounce shot and heated it without the lemon juice. That restored it to a nice energetic high, similar to the original recipe before it degenerated.

So I think maybe my original recipe was about as strong as it was going to get, and heating would not have helped it when the batch was new. But now that the THC is oxidizing or breaking down in some way, I guess the heating can restore some of that potency. At this stage, the high is definietely better after double-boiling the liqueur for an hour.