Genie Drinks takes a different approach to kombucha than the small-batch glass-bottle crowd. Their products come in 330ml cans, fermented from black tea over ten days and then packaged for convenience — available individually at £2 rather than locked into a case. It's a pragmatic format that gets kombucha into the same shelf position as a standard soft drink. The Blueberry & Raspberry is the most approachable in the range. There's genuine berry fruitiness here, derived from natural extracts alongside the kombucha base, which is softened by a small amount of apple and lemon juice. The fermentation character is mild rather than aggressive — enough acidity to distinguish it from a fruit drink, not so much that it alienates anyone new to kombucha. At 17 kcal per 100ml and 3.5g sugar, it's firmly in light-drink territory. Vegan, gluten-free, and with no added sweeteners. Multiple Great Taste awards across the Genie range suggest the quality holds up.