Sponge (tool) - Wikipedia
A sponge can be a medium for the growth of harmful bacteria or fungi, especially when it is allowed to remain wet between uses.. Cleaning. Several methods have been used to clean sponges. Studies have investigated the use of the microwave to clean non-metallic domestic sponges that have been thoroughly moistened. A 2006 study found that microwaving wet sponges for two minutes (at 1000 watt ...
