why does my kitchen sponge smell after only a day?

A Sponge is a breeding ground for bacteria. It is full of Bacteria that is constantly growing & multiplying. Either throw it into the dishwasher every night or soak nightly in a light solution of bleach & water in a bowl. You are adding germs daily to your dishes everytime you use it if it has an odor. The odor is the germs.

you can also microwave your sponges. It's an easy way to disenfect them. Just rinse them out and ring them almost dry and microwave for about 10 seconds.

what kind of dish soap do you use? that could be it..

you need to thoroughly rinse it out and then wring out as much water as you can and put it to the side to dry

IDK....but I never use a sponge, it holds way too many germs. Yes, you could throw it in the dishwasher every day. But I have been raised to use wash clothes. I go through several in a day, but when I already have to wash a load of towels and cloth diapers every day, what is another 3 or 4 washclothes??? Nothing, and less germs being spread.

I would use a rag that you wash in the washing machine. It probably smells because you didn't wring it out enough. Boil it in water and then spray with lysol or you could soak it in bleach water. GL

It could be the dish soap or what you used it on...