Aluminium fails to handle the coarseness of baking soda. The use of baking soda on aluminium can cause a chemical reaction which dulls or discolours the surface.
Baking soda, if used on antique silver, damages its delicate surface and hence, should not be used.
Baking soda cannot be used for cleaning copper pots and pans if one wants them to last long. Baking soda reacts with copper and speeds up its tarnishing.
Baking soda and glass is a bad combination. It can damage the glass surface and can lead to scratches on it.
Baking soda's grittiness can lead to the loss of shine on marble surfaces and cause permanent scratches.
Leather furniture as well as clothes should not be cleaned using baking soda. Leather has natural oils which make the material flexible. Due to baking soda, the leather may start cracking and lose its bounciness.
Painted surfaces cannot be cleaned with baking soda as they increase the risk of sodium bicarbonate creating chips or scratches in the paint.
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