just use 91% or 70% ISO and a very short shake period..2 minutes is about right with cleaned buds, trim or shake...the longer you shake/soak, the more green you get [that is not what you want]...at 2 min your yield should be amber colored and relatively hard when evaporated dry...ISO is about 1/10th the price of everclear...if you prefer a tincture, you can always use a little everclear to keep your product liquid and ready to use...