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How or why does baking soda absorb odors?

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  • Does baking soda remove odors?

    I have always been told that an open box of baking soda will "absorb" odors and make a fridge smell less. I have even seen people with three boxes in one fridge. My question is whether there is any scientific evidence for this claim. It seems entirely possible that it is purely confirmation bias; the boxes are always installed at the start of a keeping-the-fridge-decent campaign.


    The science behind the phenomenon is simply that sodium bicarbonate (as baking soda is known to its...

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