How to remove hardwater stains in a dishwasher

You may have heard of hard water in relation to the area that you live in.

Having hard water often means that your water will taste good, but unfortunately can cause spots on glass and surfaces, as well as causing a build up in your dishwasher that can be difficult to remove by hand.

So, what is it exactly, and what do we need to do to clean hard water build up and deposits in the dishwasher?

What is hard water?

In some areas, the water that comes out of your tap percolates through deposits of limestone and chalk, which are made up of carbonates. Soft water comes when there are low traces of these compounds, whereas hard water contains relatively high levels of calcium and magnesium, as well as other minerals.

There is no health risk associated with this, but as mentioned, it can lead to hard water stains and limescale build up, as well as a reduction in your dishwashing detergent’s efficiency.

How to remove limescale from a dishwasher

In your dishwasher, hard water can have two results: cloudy glasses, and limescale build up. To get rid of hard water build up or deposits in a dishwasher, there are a few simple solutions that you can use:

Finish Quantum Fresh

As dishwasher detergents can be less effective in hard water, you need something that is specifically designed to take on this task. Our Finish Quantum Fresh is a dishwasher detergent for hard water conditions – its formula contains Glass Protecting agents that block and neutralise the compounds that cause irreversible clouding and corrosion of the glasses.

Finish Quantum Fresh also includes rinse aid within it, meaning it will rinse away residues and help to eliminate spots and film for a sparkling shine. 

Finish Jet-Dry

You can use Finish Quantum Jet-Dry rinsing agent to tackle the water spots and film that come with hard-water stains for sparkling dishes, glasses and utensils in the following steps:

Step 1: Check whether your dishwasher has a built-in liquid rinse aid dispenser, which is usually located near the detergent cup(s).

Step 2: Fill your rinse aid dispenser with Finish Jet-Dry Rinse Aid and wipe up any spilled product.

Step 3: Finish Jet-Dry Rinse Aid is automatically released in the rinse cycle every time your dishwasher runs.

Step 4: We would recommend doing this monthly for the best results.

Finish Hard Water Detergent Booster

Finish Hard Water Detergent Booster works with your normal detergent to tackle limescale and hard water build up and can be added to your dishwasher cycle whenever you notice cloudy marks on your dishes and glassware.

Step 1: Check whether your dishwasher has a built-in liquid rinse aid dispenser, which is usually located near the detergent cup(s).

Step 2: Fill your rinse aid dispenser with Finish Hard Water Detergent Booster and wipe up any spilled product. If your machine doesn’t have a rinse-aid dispenser, pour two tablespoons of Finish Hard Water Detergent Booster into the bottom of the dishwasher.

Step 3: Finish Hard Water Detergent Booster is automatically released in the rinse cycle every time your dishwasher runs.

Step 4: We would recommend doing this monthly for the best results.

How to prevent hard water build up in the dishwasher

Although the above methods will help you to get rid of hard water build up in the dishwasher, it’s also important to take the necessary measures to prevent hard water from building up in the first place. Making sure that your dishwasher is regularly cleaned is the perfect way to do this – just follow our simple steps below using Finish Dishwasher Cleaner.

Finish Dishwasher Cleaner

Step 1: Ensure that your machine is empty and do not use any other soap or detergent.

Step 2: Place the bottle upside down while keeping the lid on the bottle (but, remove the sticker).

Step 3: Close the door and set the machine on its hottest cycle.

Step 4: Once the cycle is finished, remove the bottle, recycle it and your dishwasher will be at its optimum efficiency.

Step 5: Repeat once a month after regular use.

The removal of hard water stains is an important step in dishwasher maintenance. This not only means that your dishes and glasses will come out sparkling, but it means that you’ll be able to extend the life of your dishwasher, too.