Cleaning firm Arm & Hammer says about the hack for baking soda - which is actually the same as bicarb - “When cleaning your carpet with baking soda, let it sit for at least 15 minutes.

Cleaning company Arm and Hammer advises that when using baking soda - which is the same as bicarb - to clean your carpet, you should leave it for at least 15 minutes. The longer it stays on the ...