How can you taste the difference between flour, baking soda, and baking powder?

How can you taste the difference between flour, baking soda, and baking powder?

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Haha...I have a lot of unidentifiable white powders in my pantry and I'm trying to bake cookies. Thanks! :)
There are some answers for your reference as below,you can choose your best answers

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haha..flour should be more of a bland colour
if you taste just a tiny bit of the baking soda it should be kinda salty and fizzy
then that just leaves the baking powder

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Rather than risk using unidentifiable "white powders" why don;t you just bin them all and go out and buy some fresh stuff. Stale flour and baking powder (soda is the same thing, diff name) don't work well anyway, and it's hardly going to break the bank with a 3lb bag of flour and a couple ounces of baking powder - and you won't even need that if you get self-raising flour.

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