I've been had
"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."
I've been doing this for years. HeightsMom - a victim of Arm and Hammer marketing! (But, you gotta hand it to that marketing dept - that sure was clever - You think it doubled sales?)