This is imported tepache, a natural drink made from fermented pineapple. I spotted this bottle last week while on a beer run at the liquor store on Sunset and Alvarado in Echo Park, Los Angeles. Could be nasty but could be good, I thought.
Tepache is sold all over D.F. from carts on the streets (usually in plastic baggies) or at many taco or quesadilla stands. It's refreshing, tart, cool, and is fermented so well in some cases, as in Oaxaca, it sometimes acquires an alcohol content. Beer is added sometimes.
This version of tepache is made by a company named Frumex, which calls it "pineapple cider." It's the first I've seen this traditional drink from central Mexico in bottled form or in the United States. Popped it open and took a swig. Besides being carbonated, the Frumex product is 'authentic' and damn good, in the quality ginger or root beer category of good.
So later on, back out in Riverside 50 miles east from L.A. in Southern California's suburban country, I saw the bottled tepache again at a Mexican supermarket. Bought two bottles this time, one for me and one to share with my hosts.
(Now, knowing how these things work, let me know when you spot some bottled tepache at your neighborhood Trader Joe's. Only a matter of time, watch.)