Way back when I was a young hippie, we used to save the stems from our $65 kilos and put them in vodka. After soaking for a week or two, we'd remove the stems and evaporate the vodka down (this was San Diego with warm weather) by setting it on the fridge with cheesecloth over it to keep out the dust. Eventually, someone would remember it and an ounce of pot was mixed into the last of the vodka. That would be dried and we thought it made the pot a bit stronger.