The process of creating a fermented milk drink using kefir grains is relatively straightforward. These grains, a symbiotic culture of bacteria and yeasts, are added to milk and left to ferment for a period, typically 24 hours. The resulting liquid, known for its slightly sour and effervescent character, is then strained to separate the grains, which can be reused to produce subsequent batches.
Fermented foods like this beverage offer potential probiotic benefits, contributing to gut health. Historically, it has been consumed for centuries, originating in the Caucasus Mountains. Its increasing popularity is attributed to its perceived health benefits and the ease with which it can be prepared.