Does baking powder go off?

gildon, Apr 18, 5:27am
Just discovered a packet of BP in my pantry which must have been there for a couple of years. Due to ill health haven't done much baking over this time and wondered if this BP would still be Ok to use or does it lose its Oomph.


uli, Apr 18, 5:46am
it does - best to buy a new one.

lythande1, Apr 18, 6:59am
Baking powder usually has a shelf life of about 9 to 12 months. Testing it is super easy. Just stir about half a teaspoon of baking powder into a cup of hot water. It will immediately start to fizz and release carbon dioxide gas if it's still fresh enough to use.

gildon, Apr 18, 7:31am
Thank you lythande1. I will give that a try.

arielbooks, Apr 18, 7:23pm
It goes a bit grey when it is off

lilyfield, Oct 1, 8:02pm
Definetely, test it on your scones.

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