My buddy says that it takes about three to four ounces of some good weed and corn alcohol, and a mason jar. Take a coffee bean grinder and mince two or three of the ounces until its packed 3/4 of the jar then you fill the jar with the corn alcohol put a canning lid on the jar than shake it up real good everyday for three weeks on the end of the third week strain off the tincture into a clean jar and put last ounce into the jar repeat for a week then strain into your holding container make some graduations on it so you know what you taken. my friends a regular smoker he told me not to make plans for couple hours afters using a couple drops.