When combined with water, it is one of the most effective cleaning products on various types of surfaces.

Pour the water and baking soda into a bowl and mix until creamy.
Use a toothbrush to apply the paste to the joints and let it sit for 5 minutes.
Scrub the toothbrush between the joints to remove dirt, then rinse.
Hydrogen peroxide

A product that is part of the first aid kit, but is also very useful for cleaning, disinfecting and whitening the joints.
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