Tepache is a Mexican fermented pineapple beverage — made from the peel and core of pineapple (the parts typically discarded) fermented with piloncillo sugar and spices for 2–3 days. It represents the most efficient possible use of fermentation: transforming waste into a complex, lightly fermented drink using only wild yeast present on the fruit's surface. Katz documented tepache as evidence that fermentation traditions worldwide arose from the same human insight — fruit peel and sugar + time = complexity.
Pineapple peel and core (and sometimes flesh) combined with piloncillo sugar, water, cinnamon, and cloves, fermented at room temperature for 2–3 days through wild yeast naturally present on the fruit surface.
- The wild yeast lives on the fruit's surface — unwashed, organic pineapple produces the most vigorous fermentation. Commercially waxed and treated fruit may ferment poorly - Piloncillo (unrefined Mexican cane sugar) provides a molasses depth that white sugar cannot — the mineral complexity of unrefined sugar adds to the final flavour [VERIFY substitution options] - Fermentation is complete when the liquid tastes pleasantly fruity, sweet-sour, and very slightly fizzy — 2 days is typically correct at 22–24°C room temperature [VERIFY] - Tepache is served over ice immediately — it is a fresh fermented beverage, not a shelf-stable product - The fermentation produces almost no alcohol (under 1%) — it reads as a sophisticated soft drink rather than an alcoholic beverage
THE ART OF FERMENTATION + OTTOLENGHI JERUSALEM SECOND BATCH