Baking Powder Fizz Test: Why the Date on the Can Doesn’t Tell You Enough
The date stamp is a hint, not a verdict Baking powder does not age in a neat, predictable way. A canister stored in a cool, dry pantry can stay useful long after its printed date, while another that lived near a stove or got hit with humid air every time the lid opened can lose strength months earlier. That uneven failure is the real reason a date stamp cannot tell the whole story. ...