How long do you leave bicarbonate of soda on a carpet?
How long do you leave bicarbonate of soda on a carpet? Sprinkle baking soda over the carpet, and allow it to sit for at least 15 minutes. An hour or even overnight is better, so long as you can keep everybody off the carpet, including your pets. The baking soda won’t hurt them, but you want it on the carpet, not on paws and shoes.