Sour beer went from a niche curiosity to one of the most significant growth categories in craft brewing over the past two decades.
John Brewster
John Brewster
John Brewster is the homebrewer and writer behind BrewMyBeer — over a decade of all-grain brewing, 80+ BIAB batches, and 1,000+ guides on fermentation science, water chemistry, hops, yeast, and homebrewing equipment. Every guide is written from genuine hands-on experience.
- Beer Brewing
A Brief History of Monastic Brewing Traditions: From Medieval Abbeys to Modern Trappists
by John Brewster 4 minutes readThe connection between monasteries and brewing stretches back over a thousand years and represents one of the most sustained traditions of craft production in Western history.
The word “artisanal” gets applied to everything from craft beer to supermarket bread, to the point where it means almost nothing in marketing contexts.
- Beer Brewing
Mastering Fermentation Temperatures: What Happens at Each Phase of Beer Brewing
by John Brewster 4 minutes readFermentation temperature is the single most influential variable a homebrewer controls after pitching yeast — more than water chemistry, grain bill adjustments, or hop timing.
- Troubleshooting
Understanding Diacetyl: How to Prevent and Control This Buttery Off-Flavor in Your Beer
by John Brewster 4 minutes readDiacetyl is the most common off-flavor in homebrewed beer and one of the most misunderstood. That unmistakable buttery, artificial popcorn, or butterscotch taste is produced by virtually every yeast strain as a normal fermentation byproduct — the que
Brettanomyces is the genus of wild yeast responsible for some of the most complex, challenging, and rewarding flavors in fermented beverages — leather, barnyard, stone fruit, tropical funk, and the distinctive “horse blanket” character that divides b
- Fermented Drink Recipes
Exploring Kvass: Slavic Bread-Based Fermented Drink
by John Brewster 4 minutes readExplore the traditional Slavic bread kvass in our complete guide. Learn how to make this low-alcohol fermented drink at home using rye bread, the science behind the fermentation process, and creative variations from across Eastern Europe. Perfect for fermentation enthusiasts …
Learn how to make authentic apple cider vinegar from scratch with our complete DIY guide. Discover the two-stage fermentation process, equipment needed, and step-by-step instructions for creating homemade ACV with the ‘mother’. Perfect for beginners looking to craft this versatile …
Learn how to make authentic sparkling beet kvass at home with our step-by-step guide. Discover this traditional Eastern European fermented drink’s simple brewing process, health benefits, and flavor variations. Perfect for beginners seeking a probiotic-rich, naturally carbonated beverage with minimal …
Learn how to make authentic pineapple tepache at home with our step-by-step guide. Discover this traditional Mexican fermented drink’s simple brewing process, using pineapple scraps and minimal equipment. Perfect for beginners seeking a sustainable, probiotic-rich beverage with natural carbonation and …