SO I googled it (for you) & found it usually lasts about 2 years under perfect storage conditions
Here is a test to see if it is good, I am too lazy for all that & I would just buy new
The procedure for testing these two products is simple. Get out two small glasses or bowls and fill one with 3-4 tablespoons of white vinegar and fill the other with 3-4 tablespoons of room temperature water. Add about 1/2 teaspoon baking soda to the bowl containing the vinegar and the same amount of baking powder to the water bowl. Each mixture should fizz up, with the soda/vinegar producing a bigger reaction. If they both work, mark the containers with the date and check them again in 6-12 months (if you haven't used them up by then) to make sure they're still active. And if they don't fizz up, you better stop by the store before the next time you want to whip up a batch of cookies.
good to know! I found a test too! 1/4 tsp of baking soda to 2 tsp of vinegar and if it bubbles immediately its still good! Off to try the other test lol..Thanks girls!
Re: baking soda?
I googled it for you. Unopened - 2 years. Opened - 6 months.
I had no idea it ever expired
SO I googled it (for you) & found it usually lasts about 2 years under perfect storage conditions
Here is a test to see if it is good, I am too lazy for all that & I would just buy new
The procedure for testing these two products is simple. Get out two small glasses or bowls and fill one with 3-4 tablespoons of white vinegar and fill the other with 3-4 tablespoons of room temperature water. Add about 1/2 teaspoon baking soda to the bowl containing the vinegar and the same amount of baking powder to the water bowl. Each mixture should fizz up, with the soda/vinegar producing a bigger reaction. If they both work, mark the containers with the date and check them again in 6-12 months (if you haven't used them up by then) to make sure they're still active. And if they don't fizz up, you better stop by the store before the next time you want to whip up a batch of cookies.
Summer 2011
The best website in the whole world:
www.stilltasty.com
thanks girls! Both test worked! Now i'm off to make pumpkin cake!