“A box of baking soda in the fridge or freezer absorbs odors
This is a very clever and successful marketing ploy by the baking soda people, but the fact is that baking soda is very poor at absorbing odors. It seems to make sense, however, so lots of people have spent untold billions of dollars to put boxes of baking soda in their fridge or freezer to no effect. Activated charcoal would work much better but is expensive. Better to wrap your food and clean the fridge once in a while.”
Wow. I need to stop wasting money on baking soda. There’s a whole bunch of other myths listed here. Some of them are obviously false, but extended explanations are made for the ones you might not be quite sure about.
As a side note, I can personally testify about the myths regarding frying in olive oil (I love doing this with some types of fish) and salting your meat (I always salt my roasts).