Second best method IMHO is QWET this is involved, see my QWET to Vape thread. A 3 minutes wash in 0°F bud and everclear is all you need. Filter through unbleached coffee filters ( get a buchner filter with [HASHTAG]#1[/HASHTAG] filters for a really clean product) Put it in a shallow pyrex pan cover with panty hose and let it evaporate off in a dark warm place outdoors with a fan blowing over it. REMEMBER the fumes are highly flammable and it burns with a colorless flame. After it has evaporated completely down to honey scrape it up with a razor blade and put in a silicon or glass container. This stuff is difficult to handle without losing some. Once you have QWET you can decarb it in a hot oil bath. Do not do QWISO.
Without a doubt pressing rosin is the
best (clean and safest no solvents) extraction method. See my DIY Rosin Press thread.
Decarbing is simple: Heat the product to 252°F for 27 minutes. Use this chart:
View attachment 931083
Bud in the oven: heat the oven with a pyrex pan in it to 240°F, put the bud, trim etc. in an oven roasting turkey bag in less than 1" layer put in the oven for 30 minutes. Flavor will be a little toasty. (I don't like it) from here you can bake it into cookies or brownies. Make butter, coconut oil etc. out of it. I have tried a lot of tinctures - none were worth the weed or effort. I use a Magical Butter Machine II for butter and oils.
There are lots of other methods that work but these are tried and true methods I have settled on after years of experimentation. My quest continues in the QWET to Vape thread.