According to a study in the Journal of Environmental Health, zapping sponges and plastic scrubbing pads in the microwave for 2 minutes. Make VERY sure they are wet!
Before you zap your sponges in the microwave, researchers offer the following advice:
- Microwave only sponges or plastic scrubbers that do not contain steel or other metals.
- Make sure the sponge or scrubber is wet, not dry.
- Two minutes should be enough to kill most disease-causing germs.
- Be careful in removing the sponge from the microwave because it will be hot and should not be handled immediately after zapping.