Eliminate white marks on glasses: our effective advice

When you open the dishwasher eager to find your sparkling glasses, how disappointed are you to discover them tarnished with annoying white marks? Isn’t this one of the little tragedies of everyday life? Rest assured, these salt or limescale deposits are not inevitable. With a few tips and a little know-how, you will soon be able to restore the shine to your glassware that it deserves.

Where do white streaks on glasses come from?

Before embarking on a battle against white marks, it is wise to understand their origin. The glasses may come out of dishwasher with a whitish veil for several reasons.

Glasses that are too old (or of poor quality)

There leaching – elegant term for the chemical aging of glass – results from slow erosion due to numerous washing cycles. When the external coating is damaged, the glass loses its shine and reflects light less well. If rinsing removes this veil, but it reappears after drying, this is a sign that your glass is unfortunately irreversibly damaged.

Regenerating salt residue

The culprit may be poorly managed regenerating salt. Whether the salt tank is not properly closed, its seal is damaged or the salt pot is cracked, it is essential to ensure the watertightness of your system. Bad dosing or a faulty regeneration valve are also potential causes. Take care to check these elements to prevent the grains of salt from wandering where they should not.

Water too hard

THE tartar is another enemy of clean glasses. Hard water, rich in calcium and magnesium (with a high TH), promotes the formation of limescale. Result: resistant white marks. Adapting your dishwasher setting to the local water hardness is essential, as is using regenerating salt in areas where the water is particularly hard.

A detergent problem

Inappropriate dosage of your detergent, a lack or excess of rinse aid, or the use of all-in-one products can also be responsible for the tarnishing of your glasses.

An inconsistent washing temperature

Finally, an inappropriate washing temperature can compromise the cleaning process. The water must be at the optimum temperature to ensure effective washing and rinsing and to prevent spoilage of the glassware.

How to avoid whiteout on glasses?

Do regular anti-limescale treatment

A small gesture can make all the difference: a monthly anti-limescale treatment. Adding a large cup of White vinegar in the dishwasher and running an empty cycle, you will eliminate the limescale deposits accumulated in the machine.

Clean your dishwasher regularly

A clean dishwasher is a more efficient dishwasher. Do not hesitate to use the self-cleaning program if it is available, and get into the habit of cleaning the various components of the appliance, in particular the drain filter.

Consider water hardness

Knowing the hardness of your local water is essential. Adjust dishwasher settings accordingly. If necessary, use a TH test kit to help you determine the hardness level and make any adjustments recommended by your device manufacturer.

To no longer see the slightest whitish veil tarnishing the transparency of your lenses, a combination of knowledge, good practices and careful monitoring of your equipment is required.

Transparent glass conclusion

No need to rely on magic or call upon supernatural forces to make your glasses shine again. With these relevant tips and regular application of these methods, you will say goodbye to white marks. Your glassware will once again reflect the purity and finesse that you have the right to expect after being put in the dishwasher. Your next toast can celebrate the newfound clarity of your glasses, as much as the event you are celebrating. Health! 🥂


What causes white streaks on lenses?

White marks on glasses can come from several factors, such as natural wear of the glasses, the presence of regenerating salt residue, water that is too hard or a detergent dosage problem. An unsuitable washing temperature can also be responsible for this phenomenon.

How to prevent the appearance of white marks on lenses?

To avoid these unwanted marks, it is recommended to carry out regular anti-limescale treatment, to clean the dishwasher frequently, and to ensure that the appliance settings are adapted to the hardness of the water. In addition, avoid combined products such as 3-in-1 tablets and favor the use of separate products for better results.

What steps should you take to maintain your dishwasher?

It is advisable to clean the dishwasher regularly, including using a self-cleaning program if available, manually cleaning the filters and rotating arms, and running a cycle with an anti-limescale product, such as white vinegar. , to remove limescale deposits.

How to adjust your dishwasher according to water hardness?

To properly adjust your dishwasher, first determine the water hardness in your area using a test kit. Then refer to your device’s user manual to adjust the settings accordingly, and be sure to use salt and rinse aid to protect your glassware.

What products should I use to limit white marks on lenses?

It is recommended to use a quality detergent suitable for machine washing, correctly dose the product according to the manufacturer’s instructions and supplement with rinse aid and regenerating salt depending on the hardness of the water. Avoid all-in-one products and opt for separate products for better control and effectiveness.