With baking soda we can effectively clean the copper, brass, aluminum and bronze. First, wipe the surface with a damp cotton cloth which has been moistened with vinegar or lemon juice. Then add on the cloth some baking soda and salt, and polished metal surfaces to shine.
Sodium bicarbonate is suitable for cleaning crockery and kitchen sink and polishing metals.
Washing soda helps clean the stubborn fat in the oven and baking trays, to plates and other surfaces. It is also suitable as washing detergent. In its application, we must take care not to damage the skin, so when cleaning always use gloves.