FermFast Vodka Turbo Yeast can be used to ferment 13 lbs. (6kg) of sugar up to 14% ABV, however, best results are achieved using mashed grains or potatoes. Alternatively, a combination of mashed grains and sugar can be used. This product contains glucoamylase for the conversion of dextrins to fermentable sugars. Makes up to 6.6 gallons. Urea Free. 107.5 Grams.