How to clean calcium buildup in dishwasher

Keeping your kitchen and utensils clean is important for your health, and for that, one needs to know how to clean calcium buildup in dishwasher. The deposition of hard-water residue on the interior tub of the dishwasher over time is unavoidable. It tends to cause bad smell inside the dishwasher. In this post you will find all about calcium buildup and how to get rid of it using homemade solutions as well as special products, such as the Glisten Dishwasher Magic Machine Cleaner, you can get from Amazon now!

Excessive use of dishwashers combined with soap & water is mandatory if you have to remove the stains and spots from any used utensils. In some areas, water procured from natural sources contains lots of dissolved minerals and salts like calcium, sodium, potassium, carbonates, and chlorides etc. These dissolved particles have properties to adhere to any surface they come in contact with. With repeated use, they start to form a solid layer along the inner walls of the dishwasher or the draining system. This layer is called hard water buildup, it looks like a grayish or white residue. These mineral deposits along with soap residues need to be removed regularly to keep your dishwasher clean and fresh.

Remove calcium buildup with white vinegar

The simplest way to keep your dishwasher impeccable is to clean it with white vinegar regularly. Here is how to do it:

What you need:

  • White vinegar
  • Drinking glass or dishwasher plastic cup


  1. Remove all utensils out of the dishwasher before doing this.
  2. Now take 2 cups of white vinegar in a dishwasher safe glass. Quantity of white vinegar can slightly vary according to the size of the dishwasher tub. However, you should always try to use the recommended quantity.
  3. Put the glass containing vinegar on the bottom rack and shut the dishwasher’s door properly.
  4. Then switch on the dishwasher on normal/regular wash cycle mode.
  5. Once the process is complete, wipe the tub from the inside using a soft cloth and leave the door of the dishwasher open for some time to let the smell of the vinegar and calcium residues disappear.


  • You should not use more than the recommended quantity of vinegar for cleaning the dishwasher. Excessive use of acetic acid (vinegar) can damage the metallic wall of the dishwasher.
  • Never use vinegar in combination with other cleaning agents like dishwasher detergent.

Commercial calcium deposit removers

There is a large variety of commercial calcium deposit removers available on the market which are made especially for cleaning calcium buildup in a dishwasher. If vinegar is not giving you the wanted results, you can try them.

CLR Pro multi-purpose cleaner

CLR Pro CL-4Pro
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CLR Pro is a multipurpose cleaner. It works effectively against calcium, lime and rust deposited on any kind of surface. It is safe to use on different kinds of surfaces like stainless steel, porcelain, glass, fiber, ceramic, brick etc. CLR Pro is made of bio-degradable chemical substances and unlike common detergents it doesn’t harm any grass or plants in the disposal area. Besides dishwashers, people use it to clean porcelain bathtubs, plastic humidifiers and coffee pots.  Use CLR Pro once a month to keep your dishwasher clean and shiny like a new one. This multi-purpose lime descaler is the perfect solution to clean calcium buildup in dishwasher on your economically tight budget. You can click here to check the current price on Amazon

Glisten Dishwasher Magic Machine Cleaner

Glisten Dishwasher Magic Cleaner
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The Glisten Dishwasher Magic is bound to do magic in your dishwasher. It is made not only to clean but also disinfects the washer.  It’s very economical, and besides detergent and food residues, Glisten Dishwasher Magic removes robust limescale and other hard water buildups very efficiently. It’s safe on all types of plumbing and septic systems also. The main component of this cleaner is citric acid. So it doesn’t harm the environment either. Regular cleaning with the Glisten Dishwasher Magic machine cleaner keeps your washer healthy, clean and maintained from the inside. You can click here to check the current price on Amazon

Affresh Dishwasher Cleaner

Affresh Washer Machine Cleaner
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Keeping your dishwasher shiny and fresh was never this easy before. The Affresh Dishwasher Cleaner is a powerful cleaning agent formulated especially to take care of all types of depositions, putrid smell and muck inside a dishwasher. Being in the form of a tablet, it is extremely convenient to use. You just need to put one tablet of the Affresh Dishwasher Cleaner in the washer and run the recommended wash cycle. The tablet completely dissolves in the water and reaches to all unreachable areas inside the machine and cleans calcium buildup in the dishwasher. Affresh Dishwasher Cleaner is perfectly safe for metallic as well as plastic tub dishwashers. You won’t need to use it more than once a month. You can click here to check the current price on Amazon

Can Mineral Deposits Be Prevented?

Prevention is always better than cure. Repeated deposition of minerals can lead to galvanic corrosion harming the inner metal body of your dishwasher. Installing a water softener system can help prevent frequent calcium buildup in all of your home appliances.  The softener removes extra salt and minerals from hard water, and converts it into soft water.

Here are some water softener systems that you can consider installing in your house to keep your expensive home appliances safe.

Fleck 5600 SXT Digital Water Softener

Fleck 5600 SXT Digital Water Softener
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The Fleck 5600 SXT Digital is a metered water softener. This smart black water softener filters out extra calcium and other minerals using ion exchange method, and makes hard water super fit for drinking, cleaning and other purposes. It is composed of a 14″x34″ black square brine tank with a safety float, a Fleck bypass valve and 1″ male threaded yoke connection. It can treat water with up to 12 gpm service flow rates. The treated drinking water tastes better than most of the bottled mineral water available on the market.  As Fleck 5600 SXT Digital is a metered water softener, the water it treats is measured and the system only regenerates more according to the need. Its valve comes with a 5 year warranty and boasts to serve up to 27 years. Fleck 5600 SXT Digital is the coolest ever water softener with a backlit LCD display, 48 hour internal power backup, and touchpad controls. You can click here to check the current price on Amazon

Eddy Professional water descaler

Eddy Professional water descaler
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If you are looking for a water softener that softens hard water without altering the TDS, the Eddy Professional water descaler is certainly the one for you. There is a large scale misconception about high TDS being associated with health hazards. The Eddy Professional is an electronic water descaler which softens hard-water in style. It makes sure to keep healthy minerals intact while softening hard water for better use at home. Generally the excess minerals and salt dissolved in water leave residue on utensils, sinks, home appliances and faucets. Over time, they develop into hard deposits adhered to the surfaces that come repeatedly in contact with hard water. Eddy treats the hard water with electromagnetic waves. It tampers the adhesive nature of limescale making it softer. It is very cheap and eco-friendly. It comes with a 12 month money-back guarantee and a lifetime repair or replace warranty. With Eddy Professional water softener installed around the water source pipe, you can keep your home appliances free from any unwanted limescale buildup. You can click here to check the current price on Amazon

iSpring RCC7 Water System

iSpring RCC7 Water System
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The iSpring RCC7 can purify very hard water using the process of reverse osmosis. The best thing about this RO purifier is that it is manufactured for space compromised houses. Its compact design fits under the sink. With this awesomely efficient system installed at home, you won’t need to worry about hard water buildup on your home appliances like the dishwasher and washing machine. The system runs on reverse osmosis (RO) technology and is designed to remove over 1000 different kinds of unwanted particles from hard water. The unit is very easy to install and requires minimum maintenance. It comes with a brass faucet. The company provides a three year manufacturer warranty in addition to one year money back guarantee on the system. You can click here to check the current price on Amazon.

Also read: How to clean shower head holes.

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