Should You Wash a Toilet Brush in the Dishwasher?

Toilet brushes keep bathrooms clean, but they also collect bacteria and germs. Because of this, proper cleaning is essential. Some people consider the dishwasher as a quick fix—but is it safe?

Why the Dishwasher Isn’t the Answer
Dishwashers are built to clean dishes and utensils, not toilet brushes. Their water jets and heat may not kill the tough bacteria found on brushes. Plus, the shape and bristles of a brush don’t fit well, leading to poor cleaning results.

The Risk of Cross-Contamination
A major concern is spreading germs. If you place a toilet brush in the dishwasher, bacteria can transfer onto plates, cups, and utensils. Since these items touch food and mouths, the risk of illness is high.

Ineffective Cleaning Power
Dishwashers struggle to clean deep within bristles. Dirt and bacteria often remain lodged inside, even after a full cycle. Standard dishwasher detergents are not designed to handle toilet germs.

Possible Damage
Washing a brush in the dishwasher can harm both the appliance and the brush. Bristles may bend, detach, or wear down, making the brush useless. Hard bristles and metal parts can also scratch the dishwasher’s interior, leading to costly repairs.

Safer Cleaning Alternatives
Instead of risking your dishwasher, try proven cleaning methods:

1. Bleach Soak
Mix hot water with one cup of bleach in a bucket. Soak the brush for an hour, rinse well, and let it air dry.

2. Hydrogen Peroxide
Pour hydrogen peroxide directly on the bristles. Let it sit for 10 minutes, rinse with hot water, and dry completely.

3. Vinegar and Baking Soda
Sprinkle baking soda on the bristles, then add vinegar. The fizzing action lifts dirt and kills bacteria. After 15 minutes, rinse with hot water and dry.

Regular Care Tips
Rinse the brush with hot water after each use. Store it in a ventilated holder to help it dry and prevent bacterial growth. Disinfect it regularly with one of the methods above.

When to Replace Your Brush
Even with good care, toilet brushes don’t last forever. Replace yours if the bristles fray, it develops an odor, or mold appears. As a rule, swap it out every 6–12 months.

Final Word
While tossing a toilet brush in the dishwasher may sound convenient, the risks outweigh the benefits. Instead, use disinfectants designed to k*ll bathroom germs. With regular cleaning and timely replacement, you’ll keep your bathroom fresh and sanitary.