Is it safe to put a toilet brush in the dishwasher?

When it comes to household chores, maintaining cleanliness and hygiene is of utmost importance, especially in areas like the bathroom where germs can thrive if not properly managed. The toilet brush, a crucial tool for keeping a pristine lavatory, can inadvertently become a breeding ground for bacteria and fecal matter. This raises a critical question: how can we guarantee the sanitary condition of our toilet brushes?

A commonly suggested method is to clean the toilet brush in the dishwasher, but the safety and effectiveness of this approach warrant careful consideration. In this article, we will delve into the intricacies of this practice and establish guidelines for fostering a hygienic environment in your home.

Understanding the Risks

  1. Cross-contamination: A primary concern associated with placing a toilet brush in the dishwasher is the potential for cross-contamination. Dishwashers are designed to clean kitchenware that comes into contact with food, and introducing a toilet brush could potentially spread harmful bacteria to plates, utensils, and cooking equipment.
  2. Ineffectiveness: Dishwashers may not reach the high temperatures necessary to eliminate all bacteria present on a toilet brush. While hot water and detergent are effective against typical food residue, they may not fully eradicate all pathogens found in fecal matter.
  3. Damage to the appliance and brush: Toilet brushes are constructed from materials that may not withstand the harsh environment of a dishwasher. The heat and intense water pressure could lead to deformation of the brush or damage to the appliance’s internal components.

Alternative Cleaning Methods

  1. Bleach solution: An effective way to disinfect a toilet brush is to soak it in a bleach solution (1 part bleach to 6 parts water) for an hour, followed by thorough rinsing and complete drying.
  2. Hydrogen peroxide: Hydrogen peroxide, a household disinfectant, can be used similarly to bleach. Soak the brush and then rinse it well.
  3. Vinegar and baking soda: For a more natural approach, soaking the brush in a mixture of vinegar and baking soda can help disinfect and eliminate odors. Follow this with a thorough rinse.

Guidelines for Toilet Brush Care

  1. After each use, allow the toilet brush to dry completely before placing it back in its holder.
  2. Regularly clean and disinfect the toilet brush using the alternative methods mentioned above.
  3. Replace your toilet brush at regular intervals or if it exhibits signs of wear and tear.


While placing a toilet brush in the dishwasher might seem like a convenient shortcut to cleanliness, it is not advisable due to the risks of cross-contamination and potential damage to both the brush and the appliance. Instead, opt for safer and more effective cleaning methods to ensure the hygiene of your bathroom without compromising the cleanliness of your kitchenware. Always prioritize the health and safety of your household by following best practices for sanitation and maintenance.