Among all the appliances in the kitchen, the dishwasher is one of the most appreciated. It saves time, effort, and water by taking care of plates, glasses, cutlery, and even pots and pans — leaving you only to wipe down the counters and stove. However, while it does the cleaning for you, the dishwasher itself also needs regular maintenance.
Over time, detergent residue, food particles, and hard water deposits build up inside. The result is limescale, unpleasant odors, and reduced performance. What many people don’t realize is that a dirty, limescale-filled dishwasher doesn’t just smell bad — it also consumes more electricity and water, increasing your utility bills.
Fortunately, there’s an easy, eco-friendly solution: citric acid. This natural product not only removes limescale and sanitizes your appliance but can also be used as a natural rinse aid. Here’s how it works and why it’s worth adding to your cleaning routine.
Why Your Dishwasher Needs Regular Cleaning
Although it may seem self-cleaning, your dishwasher is constantly exposed to dirt and detergent residues. Food scraps get trapped in the filter, grease accumulates along the seals, and hard water leaves mineral deposits that turn into thick limescale.
This buildup can cause several problems over time:
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Bad odors caused by bacteria and mold growth.
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Dull dishes due to detergent residues or hard water stains.
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Reduced efficiency, as limescale makes heating elements and water jets work harder.
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Higher electricity bills, since the machine uses more energy to heat water and complete cycles.
To keep your dishwasher working efficiently and extend its lifespan, it’s important to give it a thorough cleaning at least once a month. That’s where citric acid comes in — a single natural product that can replace multiple chemical cleaners.
What Is Citric Acid?
Citric acid is a natural compound found in citrus fruits such as lemons, oranges, and limes. In cleaning, it’s known for its ability to dissolve limescale, remove mineral residues, and neutralize bad smells.
It’s considered a weak acid, which means it’s powerful enough to clean effectively but gentle enough not to damage most surfaces. You can find it in stores or online in powder or crystal form, and it’s one of the most versatile and sustainable cleaning ingredients available.
Here are just a few of its common household uses:
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Descaling appliances like kettles, coffee makers, and washing machines.
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Softening laundry naturally, when added to the rinse cycle.
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Removing rust or mineral stains from faucets and tiles.
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Neutralizing odors in drains or bins.
Because it’s biodegradable and non-toxic, citric acid is an excellent alternative to harsh chemical cleaners that can harm your health or the environment. However, it should not be used on delicate surfaces such as marble, stone, or untreated wood, as the acid can damage them.
How to Clean the Dishwasher with Citric Acid
Cleaning your dishwasher with citric acid is a simple process that requires only two ingredients: citric acid and water. Here’s how to do it:
You’ll need:
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150 grams of citric acid powder
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1 liter of water
Instructions:
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Mix the citric acid and water in a container until fully dissolved.
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Pour the solution into the bottom of the dishwasher or directly into the detergent dispenser.
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Run an empty hot wash cycle (without dishes) to allow the solution to circulate through the appliance.
As the cycle runs, the citric acid breaks down mineral deposits, removes detergent buildup, and eliminates bacteria that cause unpleasant smells. When the wash is finished, your dishwasher will look shiny, smell fresh, and work more efficiently.
Performing this cleaning once a month will help prevent limescale formation and maintain the machine’s performance, ultimately lowering your electricity consumption.
Citric Acid as a Natural Rinse Aid
Another clever way to use citric acid is as a natural rinse aid. Commercial rinse aids often contain synthetic chemicals and fragrances, but this homemade version is just as effective and much safer.
Here’s how to make it:
Ingredients:
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150 grams of citric acid
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1 liter of water
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A few drops of lemon essential oil (optional, for fragrance)
How to use:
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Mix all ingredients in a clean bottle and shake well.
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Pour the mixture into the rinse aid compartment of your dishwasher as you normally would with a commercial product.
This natural alternative not only helps water slide off dishes, leaving them shiny and spotless, but also prevents mineral streaks and enhances the overall freshness of your machine. The lemon essential oil adds a pleasant, clean scent that lingers after every wash.
Extra Tips to Keep Your Dishwasher in Top Condition
While citric acid is a great way to deep clean your dishwasher, a few daily habits can help keep it running efficiently between cleanings:
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Scrape food residues off dishes before loading them. This reduces buildup inside the filter.
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Clean the filter weekly. Remove it and rinse it under warm running water to eliminate trapped food particles.
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Wipe down the seals and door edges with a damp cloth to prevent mold.
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Leave the door slightly open after each cycle to allow moisture to escape and avoid bad odors.
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Use less detergent. Most people use too much, which causes residue and buildup over time.
A Simple, Natural Solution That Saves Money
Keeping your dishwasher clean doesn’t have to mean using harsh chemicals or spending money on expensive maintenance products. With just a small amount of citric acid, you can remove limescale, neutralize odors, and improve your appliance’s performance — all while protecting the environment and cutting down your utility costs.
Try incorporating this simple citric acid cleaning method into your monthly routine. You’ll notice that your dishes come out cleaner and shinier, your dishwasher smells fresher, and your electricity bills are just a little lower.
Sometimes, the best solutions are the most natural ones — and this easy trick proves it!
