(PLEASE NOTE: To guard against the risk of fire, people who wish to sterilize their sponges at home must ensure the sponge is completely wet. Two minutes of microwaving is sufficient for most sterilization. Sponges should also have no metallic content. Last, people should be careful when removing the sponge from the microwave as it will be hot.)
One cheap household appliance could hold the key to keeping your family safe from dangerous bacteria. The next time you finish using that kitchen sponge, throw it in the microwave. Here’s UF engineer Gabriel Bitton.