Drink Real. Feel Real.
Break Away From the Masses With an Authentic, Small Batch Kombucha, Brewed Fresh in San Francisco
You Shouldn’t Have to Question Your Drink.
At Koast Kombucha, we believe you shouldn't have to second-guess what's in your probiotic drink. Unlike many "probiotic" beverages that are pasteurized or engineered, our small-batch, handcrafted kombucha is traditionally brewed to preserve live cultures and authentic flavor.
No shortcuts—just real ingredients, real fermentation, and real benefits.
Check Out Our Flavors, Crafted With You in Mind.
What Makes Koast Unique?
Ready to take the next step? You’re one step closer to a more refreshing future.
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Flavored Only Using Real Fruits
Brewed in Oak Barrels
5g of Sugar Per Serving
SF Born, SF Made
