Sponges are breeding grounds bacteria since theyre porous and hold moisture.

Learn how to clean your sponge and when its time to replace it below.

Dry sponges can start a fire in the microwave.

Overhead view of dirty sponges preparing to be cleaned

The Spruce / Ana Cadena

When Should You Replace Your Sponge?

The general rule is to replace your frequently used sponges every one to two weeks.

Studies have found that dish brushes dry faster than sponges and bacteria dies faster on them as well.

Soaking the sponges in a cleaning solution

The Spruce / Ana Cadena

Washcloths also arent as porous as sponges which helps prevent moisture and bacteria growth.

A bleach and water solution is the most effective and consistent way to clean a sponge and remove bacteria.

Bleach is the most effective method, but these other methods will reduce the bacteria in your sponge.

Wet sponges are a breeding ground for bacteria.

After each use, rinse any leftover grime on your sponge and wring it out.

Set aside in a spot where it can quickly dry.