Propper Seltzer Yeast Nutrient is a yeast nutrient developed specifically for making hard selzter! This 1 oz. package is perfect for fermenting a 5 gallon batch of hard seltzer with an original gravity of 1.060 or less. Easy to use, this nutrient is added after the sugar mixture has been boiled and target gravity is reached. It can help achieve full fermentation in 7 days with a traditional yeast strain, or as few as 4 days with Omega's Lutra Kveik. Make the perfect seltzers every time with this seltzer nutrient from Omega Yeast Labs!