LiquorQuik® SuperYeast™ X-Press" is a high alcohol turbo that can produce 25 liters (6.5 U.S. Gallons) of 20% alcohol base in as little as 5 days. The new X-Press is completely stackable, which means that you can ferment multiple packs at a time, as long as the sugar, water, and temperature is kept constant. It works by fermentation of a special distiller’s yeast and complex blend of nutrients and vitamins.