Studies show that sponges are the worst place for germs in the kitchen, and that some of the cleanest looking kitchens may in fact be covered in bacteria from wiping things down with those germy sponges.
This fast fix gives you a simple solution. So what you need to do is grab those dirty sponges and soak them in water, and then simply put them into a microwave for 2 minutes.
Researchers found that after doing this every other day kills about 99% of pathogens.
Just be careful when removing those sponges, as it’s going to be very hot.