Ways to Disinfect a Kitchen Sponge

Over 50 million bacterial organisms can live on a single sponge.

Kitchen sponges can be havens for the growth of bacteria. The reason for this is that bacteria grow well in warm, moist environments. If you reuse your kitchen sponge without disinfecting it, you could be exposing yourself to organisms that could make you and your family sick. Luckily, there are multiple methods of disinfecting kitchen sponges.

Laundry

A simple way to disinfect your kitchen sponges is to wash them in your washing machine. Toss your sponge in with a load of towels, dishcloths and washcloths. Use your hottest water setting to kill bacteria. You can add bleach to the wash as well if the other items are safe for bleaching. Drying your sponge on a hot dryer cycle can further help in the disinfecting process.

Dishwasher

Your dishwasher can clean and disinfect your dishes, glasses and silverware. The good news is that it can disinfect your kitchen sponges as well. Lodge your sponge between some items in the dishwasher, or place it in one of the silverware bins. Turn on your dishwasher and disinfect your sponge and dishes all at once.

Microwave

This method of disinfecting sponges is effective, but it can be dangerous if not performed properly. Wet your sponge thoroughly and place it in your microwave. Heat the sponge for up to one minute. The safest way to do this is to watch the sponge the whole time it is heating. If you see any smoke or smell any unusual smells, turn off the microwave immediately. Sponges that become dry during this method of disinfecting can catch on fire.

Bleach Soak

This disinfecting method takes about five to 10 minutes to perform. Create a cleaning solution of one part bleach to eight parts hot water in a clean sink or large pot. Immerse your sponges in this solution and let them soak for at least five minutes. When you remove the sponges, rinse them thoroughly to remove the bleach before using them again. Remember that bleach is a strong substance and you should avoid breathing it or exposing your skin to it if possible.

References

• HealthGuidance: How to Disinfect Your Sponges; Susan M. Keenan
• The New York Times: The Claim: You Can Disinfect a Kitchen Sponge in the Microwave; Anahad O'Connor; Mar 2007
• MSN Women's Health: Kitchen Germs