What is Dishwasher Salt

Dishwasher salt, also known as water-softening salt or dishwasher granular salt, is an essential component of any dishwasher. It plays a vital role in maintaining the performance of the dishwasher by ensuring that the water used in the washing process is soft and free of any mineral deposits that can damage the machine and leave dishes looking dull and spotty.

In this article, we will take a closer look at dishwasher salt and its importance, how it works, and how to use it effectively.

What is Dishwasher Salt?

Dishwasher salt is a special type of salt used to soften hard water. Hard water is water that contains high levels of dissolved minerals such as calcium and magnesium. These minerals can build up in your dishwasher, leaving white spots on your dishes and glasses and reducing the effectiveness of the cleaning process.

Dishwasher salt is made up of granular sodium chloride, which dissolves easily in water and removes the minerals that cause hard water. It is specifically designed to work with dishwashers that have built-in water softeners.

How Does Dishwasher Salt Work?

Dishwasher salt works by a process called ion exchange. As water flows through the dishwasher, it passes through a resin bed that contains small resin beads. These beads are negatively charged and attract positively charged ions such as calcium and magnesium.

As the water passes through the resin bed, the calcium and magnesium ions are attracted to the resin beads and replaced with sodium ions from the dishwasher salt. The result is soft water that is free of mineral deposits.

Why Use Dishwasher Salt?

Using dishwasher salt has several benefits, including:

  1. Improving cleaning performance – Soft water is more effective at cleaning dishes than hard water. Soft water allows the detergent to lather better and dissolve more effectively, resulting in cleaner and shinier dishes.
  2. Reducing water spots – Hard water can leave mineral deposits on dishes, glasses, and silverware, leaving them looking dull and spotty. Using dishwasher salt can help prevent these water spots and keep your dishes looking their best.
  3. Extending the life of your dishwasher – Hard water can cause mineral deposits to build up in your dishwasher, leading to clogs, leaks, and other malfunctions. Using dishwasher salt can help prevent these problems, prolonging the life of your dishwasher and saving you money on repairs.

How to Use Dishwasher Salt?

Using dishwasher salt is easy. Here are the steps to follow:

  1. Check your dishwasher manual – Not all dishwashers require salt, so check your manual to make sure your dishwasher has a built-in water softener and requires salt.
  2. Fill the salt dispenser – The salt dispenser is usually located at the bottom of the dishwasher. Open the dispenser lid and fill it with dishwasher salt. Be careful not to overfill the dispenser.
  3. Run a rinse cycle – After filling the salt dispenser, run a rinse cycle to allow the salt to dissolve and distribute evenly throughout the water softener.
  4. Check the salt level – Check the salt level regularly and top up as needed. A light on the control panel of your dishwasher will indicate when the salt level is low.
  5. Use the right type of salt – Make sure you use dishwasher salt specifically designed for use in dishwashers. Table salt or sea salt will not work effectively.


Dishwasher salt is an essential component of any dishwasher with a built-in water softener. It helps to maintain the performance of the dishwasher, improve cleaning results, and extend the life of the machine. By understanding how dishwasher salt works and how to use it effectively, you can ensure that your dishes come out looking their best every time.

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