Putting “acid” on your face might sound like a recipe for disastrous stinging, burning, and peeling—a la Samantha’s lobster-red face in that unforgettable episode of Sex and the City. Lactic acid for ...
This causes sugars in the grape juice to ferment which forms alcohol and carbon dioxide. In cheese and yoghurt, bacteria perform a similar job, turning lactose into lactic acid. Rennet is then added ...