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The dirty secret of dishwasher water: why it’s so gross and what to do about it

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er,...

What To Know

  • However, if the dishwasher is not used properly or is not maintained regularly, the water can become contaminated with food particles, bacteria, and other contaminants.
  • The cleanliness of dishwasher water depends on a number of factors, including the type of detergent used, the temperature of the water, the amount of food residue on dishes, and the frequency of use.

Dishwashers are a convenient and efficient way to clean dishes, but many people wonder if the water used in dishwashers is actually clean. After all, it’s used to wash dirty dishes, so it stands to reason that it might be contaminated with food particles, bacteria, and other contaminants.

In this blog post, we’ll explore the question of whether or not dishwasher water is dirty. We’ll discuss the different factors that can affect the cleanliness of dishwasher water, and we’ll provide tips on how to keep your dishwasher water clean.

How Does a Dishwasher Work?

To understand whether or not dishwasher water is dirty, it’s important to first understand how a dishwasher works. Dishwashers use a combination of hot water, detergent, and agitation to clean dishes. The hot water helps to dissolve food particles and grease, while the detergent helps to break down and remove stains. The agitation helps to circulate the water and detergent around the dishes, ensuring that all surfaces are cleaned.

What Contaminants Can Be Found in Dishwasher Water?

The cleanliness of dishwasher water can be affected by a number of factors, including:

  • The type of detergent used. Some detergents contain harsh chemicals that can leave a residue on dishes. These residues can attract bacteria and other contaminants.
  • The temperature of the water. Hot water is more effective at dissolving food particles and grease than cold water. However, if the water is too hot, it can damage dishes.
  • The amount of food residue on dishes. The more food residue on dishes, the more likely it is that the dishwasher water will become contaminated.
  • The frequency of use. Dishwashers that are used frequently are more likely to have dirty water than dishwashers that are used infrequently.

Is Dishwasher Water Dirty?

So, is dishwasher water dirty? The answer is: it depends. If the dishwasher is used properly and maintained regularly, the water can be relatively clean. However, if the dishwasher is not used properly or is not maintained regularly, the water can become contaminated with food particles, bacteria, and other contaminants.

How to Keep Dishwasher Water Clean

There are a number of things you can do to keep your dishwasher water clean, including:

  • Use a high-quality detergent. Choose a detergent that is specifically designed for dishwashers. Avoid using harsh chemicals or detergents that contain bleach.
  • Set the water temperature to the correct setting. The ideal water temperature for dishwashers is between 120 and 140 degrees Fahrenheit.
  • Rinse dishes before loading them into the dishwasher. This will help to remove any food residue that could contaminate the dishwasher water.
  • Clean the dishwasher regularly. Dishwashers should be cleaned every few months to remove any food residue or buildup. To clean the dishwasher, simply run it through a cycle with a cup of white vinegar in the bottom of the tub.
  • Avoid overloading the dishwasher. Overloading the dishwasher can prevent the water from circulating properly, which can lead to dirty water.

The Bottom Line: Is Dishwasher Water Dirty?

The cleanliness of dishwasher water depends on a number of factors, including the type of detergent used, the temperature of the water, the amount of food residue on dishes, and the frequency of use. If the dishwasher is used properly and maintained regularly, the water can be relatively clean. However, if the dishwasher is not used properly or is not maintained regularly, the water can become contaminated with food particles, bacteria, and other contaminants.

Basics You Wanted To Know

Q: Is it safe to drink dishwasher water?
A: No, it is not safe to drink dishwasher water. Dishwasher water can contain harmful bacteria and other contaminants.

Q: Can I use dishwasher water to water my plants?
A: Yes, you can use dishwasher water to water your plants. However, it is important to make sure that the water is not too hot or too cold.

Q: How often should I clean my dishwasher?
A: Dishwashers should be cleaned every few months to remove any food residue or buildup. To clean the dishwasher, simply run it through a cycle with a cup of white vinegar in the bottom of the tub.

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Rob Sanders

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er, Rob takes pride in testing out the latest tools and gadgets to see how they can make home projects easier. When it comes to heating systems, he's evaluated over 50 different furnace and boiler models over the years. Rob founded Nurturing Homeaid with his business partner Jim in 2020 to provide homeowners with genuine product recommendations they can trust. In his free time, Rob enjoys remodeling old homes with his family and traveling to visit architectural landmarks across the country. He holds a bachelor's degree in Journalism from Syracuse University.
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