Still Spirits Turbo Power 23. Breakthrough technology yeast strain that delivers 23% alcohol by volume. 370g pack. Parts A and B. For fast and complete fermentations of the wash. One pack ferements six gallons of wash. Use where high alcohol strength is the most important thing. Fermenting to 23% ABV in the wash will increase the still yield by nearly one third. Only use where cool air temps (between 18-24 deg c) can be maintained. Remember, the more alcohol porduced by the yeast, the lower the final distillate quality.