Already have our Hard Seltzer Brewing Kit and ready for your next batch? Fill up your carboy or any 1 gallon fermenter with a Hard Seltzer Recipe Kit! This refill kit comes with all the ingredients you need without the equipment you already have. Each Hard Seltzer Recipe Kit includes non-GMO sugar, champagne yeast, yeast nutrient, natural grapefruit flavor, and sanitizer. In just 4 weeks, you’ll have 8 - 10 bottles of naturally gluten-free hard seltzer for just $1.50 per bottle!