This is a collaboration with Natoora, built around fruit grown by Amadora in Mairena del Alcor, Seville. She's a fourth-generation farmer who lets each passion fruit ripen fully on the vine rather than picking it — nets catch the fruit when it drops naturally. The result is notably less acidic than most passion fruit, with more sweetness and aromatic depth than you'd get from forced-harvest fruit. The base is MOMO's standard raw, unfiltered kombucha made with organic tea, and the passion fruit brings a vivid tropical lift. There's a clean sweetness up front that gradually hands off to the familiar kombucha tartness. The elderflower in the ingredients list is subtle — it softens the edges rather than announcing itself. Like the rest of MOMO's seasonal range, this ran for a couple of months before selling out. Certified organic by the Soil Association. Available at Selfridges, Planet Organic, Whole Foods, and GAIL's Bakery while stocks last. Ten pence from each bottle supports Natoora's Farm Fund.