Symbiotica is a dedicated hard kombucha and fermented beverage sub-brand or project by AF Brew, a craft brewery based in Russia. The concept centres on symbiotic fermentation — the biological process that gives the brand its name — using live cultures, wild yeasts and bacteria to produce naturally fermented drinks. AF Brew, known for its experimental and boundary-pushing approach to craft brewing, launched Symbiotica to explore the intersection of traditional fermentation techniques and modern flavour innovation. The Symbiotica portfolio focuses on hard kombucha and jun-style drinks, water kefir, and hard seltzer. Each release is characterised by vibrant, botanical and fruit-forward flavour combinations, such as Cloudberry, Cucumber × Lemon × Mint, Raspberry × Mint, and Estragon (tarragon). The water kefir and jun styles showcase light, refreshing fermentation profiles, while the hard seltzer line — described as the second season of Symbiotica — uses cane sugar and specialised yeasts as its base. Some releases are produced in collaboration with BSG. On Untappd, individual Symbiotica releases have attracted hundreds of ratings, with Nordic Cloudberry earning 255 ratings and a 3.6 score, and Water Kefir Estragon reaching 3.8 out of 5 with 151 reviews. The range also includes low-alcohol options such as Pure: June, an unfiltered and unpasteurised release at 1.0% ABV.