I have tried to make canabutter twice and had no luck, just a stinky house
Its very easy
1.crook pot
2.2-3 ounces of trim depending how good the trim is!
3.4 sticks of butter unsalted butter sticks
4.water
5.candy thermometer very important need to keep your temps at 200 and you aalso nd some cheese cloths.
What I do is boil water in crock pot
Add 4 sticks of unsalted butter then grind your trim and add to water and butter you should reach 200 on your candy thermometer, boil for about 6 hours then take might nd extra hands for this part, after about 6 hours of simmering at 200 cut a nice size piece of cheese cloths and fold once or twice after letting it cool of strain trimming through cheese cloth into a tupper wear its going to be hot so go slow do this twice just to make sure you got all the trimming out cover and put in fridge till morning you will have all the butter form on top of the water that's it.Good luck hope I explained everything.pop the butter off the top and throw black water away.one more thing don't let it get to cool when straining I usually strain it right away don't give other a chance to cool down to much a min. Or two.
Rocko