Tibicos

Fermented water kefir with grains on the bottom and a floating piece of grapefruit peel
Tibicos grains average 5 mm (1⁄4 in) in dimension.

Tibicos, or water kefir, is a traditional fermented drink made with water and a water kefir grains held in a polysaccharide biofilm matrix created by the bacteria. It is sometimes consumed as an alternative to milk-based probiotic drinks or tea-cultured products such as kombucha. Water kefir is typically made as a probiotic homebrew beverage. The finished product, if bottled, will produce a carbonated beverage.