I've been doing different tests to try and get the most rso possible out of the dank buds I've been using. I think buds are more medicinal than the trim people usually use. I've tried both and the effects of the bud rso seems to be a lot stronger. I've had the best results by grinding my cannabis into powder, then submerging it in 95% ethanol (everclear). I find that the solvent really doesn't matter all that much. I use ever clear because it's food grade. Then I slowly heat it up to the point it starts to boil. Then I let it sit for a day or two. sometimes longer but a day seems to be enough. Then I filter it using a coffee filter. I take the cannabis and wash it again with the ethanol to get any remaining cannabinoid rich liquid off the plant matter. Then I filter that. From there I do things pretty normally. I use a rice cooker, but I leave it all the way on till it stops bubbling. then I give it a few more minutes to make sure all the ethanol has evaporated out of it. I know some people who smoke it and I don't want to fuck them up. Some people say not to do that because they're afraid of burning it, but I've never had that problem with a rice cooker. I've never had this rso tested but it seems to be just as potent as usual, but you get more out it. It takes a little longer, but it's worth it. especially if you're using buds and not trim. I'm interested to hear if anyone else has tried a similar method or any other unique ways of doing it. My goal is to figure out the best rso recipe and share it with the world.