How to get rid of the smell from the fridge?

Question

Storing various meals and products in fridge (or freezer) can result in mixing different flavours, which isn't that great. What are your best practises to avoid the smell?

Answer

Baking soda seems to work well for me, but the best thing is to get rid of old food that is causing the smell, and seal strong-smelling foods in airtight containers.

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