Fermentorium makes caffeine-free kombucha by flavoring the brew with whole, fresh ingredients before fermentation, letting its culture shape the final taste. The company offers its live-probiotic drinks in five-gallon kegs for wholesale, with flavors such as Ginger Mint and Blueberry Lavender. Its pre-fermentation approach distinguishes the New York maker from conventional kombucha producers, whose tea is typically flavored after fermentation.