you can use males...it does contain some thc content...
basically use ALL your scrapes from your harvest...or if its subpar bud you can use it too...
you can make iso hash...its extremely inexpensive, quick, and simple...
1st) get your supplies you'll need 99% iso alcohol (aka rubbing alcohol), a jar, a razor, 2 paper coffee filters, and a large flat surface thats easy to scrape...like a glass table or a pyrex/glass plate.
2nd) take all your trimmings (or whatever you wanna use to make hash) and make sure its cut up decently (but not ground up into powder as you do not want plant matter to make its way through the coffeefilter and into your hash).
3rd) put trimmings in the jar (mason jars work great) add enough alcohol to completely cover the trimmings with alcohol (no more no less) after this put the lid on the jar and seal tightly...shake...shake...and shake some more...for 5-10 mins...by now the iso alcohol should appear to be a greenish color
4th) now take your coffee filters (2 of them together) and place them upside down over the open jar...(rubberbands help keep it on) now turn the jar upside down and allow the iso to drain through (be patient it takes awhile to COMPLETELY drain it...which you should wait for) onto the large surface that will be easy to scrape...once its drained completely just leave the surface near a window or outside (ideally)...wait for it to dry...
once its dry the plate should look sticky/crusty golden or golden brown...this is your hash! scrape it with the razor until the plate is clean...be careful the hash is extremely sticky...i got some on my fingers and i couldnt get it off for nearly the whole day...store in a small container (like a carmex container...the cylinder ones)...then boom its ready to go...
never scrape if you can still smell the alcohol...that means it hasnt funny evaporated and you dont wanna smoke alcohol...haha