By your measurements if I did my conversions right you should have a little over a 4 gram dose in your batch of brownies. In my opinion for edibles to have a noticeable effect I usually need to eat a grams worth, this can vary quite a bit depending on your tolerance and the potency of the medicine but its a good baseline. If you use the common size brownie pan, 13x9, it would take roughly 9x3.25 of brownie to equal a gram and thats quite a large brownie, my guess is you didn't eat enough.so i made canna butter in mason jars and crock pot for 24 hours 11 grams per stick and half of butter . so i make brownies use 1/3 cup of canna butter i eat it do not feel a thing is it because im already high from smoking ?
This will deliver the lowest amount of thc in your end product vs using buds, kief, or concentratesi did use trimming from harvest no bud