Tepache is a fermented beverage made from the peel and the rind of pineapples, and is sweetened either with piloncillo or brown sugar.

Tepache is usually sold as a chilled drink by street vendors in Mexico, stored in barrels to expedite the fermentation process.

The sugar serves as a nutrient source for these microbes, which produce lactic acid and carbon dioxide, contributing to tepache's slight effervescence and tart flavor.

The original Frumex Tepache contained 12% juice and was made from fermented skins and pulp along with some sugar, spices, and barley.

The drink tepache is mentioned in the popular Spanish-language quebradita song "La Niña Fresa" ('The Spoiled Girl'), by Banda Zeta, in which the spoiled-girl character is offered several types of drink—including tepache—yet she refuses them all, for being beneath her social status.