Charcoal is an excellent odor absorbent and all you have to do
is rip the bag open a bit and set it in your pantry. You can use
charcoal in your other cabinets, too. Just place a piece of two
inside in the back and change it out every few months. If you
have a plastic container that smells like onions or garlic, pop
a piece of charcoal in it overnight with the lid on it and it
will smell better by morning.