Even slightly smelly sponges should be disposed of. These innocent-looking objects are hotbeds of germs that can quickly become one of the filthiest things in your kitchen – the reason you should clean seemingly fresh sponges every three or four days at the very least. Here are two sponge-cleaning tricks:
• Soak a sponge overnight in a mixture of 1 cup (250ml) hot water, 1/2 cup (125ml) white vinegar and 3 tablespoons salt. The next day, rinse and squeeze the sponge several times to get rid of all of the accumulated cleaning liquid.
• Put a wet sponge (emphasis on wet) in the microwave and heat it on High for 2 minutes. Stay there until the microwave beeps because there’s a chance (though an extremely slight one) that the sponge could burst into flames.