Glass corrosion occurs when glass is exposed to moisture over time. Minerals in the glass are washed out and replaced by water molecules, resulting in a dull, milky-white film. Thicker glass and glass with scratches are often more susceptible.

Causes of glass disease:

• High humidity and poor drying
• Harsh dishwasher cycles or too much detergent
• Water with high hardness
• Storage in damp environments

Note! Glass corrosion is a natural wear issue and is not covered by the warranty.

How to prevent glass disease

• Wash exclusive glassware by hand and dry immediately.
• If using a dishwasher: select the gentle/glass cycle at a maximum of 50–55 °C.
• Use only half the usual amount of detergent, and avoid glasses knocking against each other.
• Dry glasses right after washing, and avoid letting them air dry.
• Store glassware in a cool, dry place, preferably not upside down.
• Avoid storing in damp cabinets—feel free to include a silica packet to absorb moisture.
• Wash rarely used glasses a couple of times a year to remove alkaline residues.

Can glass disease be removed?

First, check if it’s actually glass corrosion – or just limescale:

• Try washing the glass by hand with vinegar or citric acid (50 g citric acid in warm water). Limescale can be removed this way – but if it doesn't help, it's probably glass disease.

Unfortunately, glass corrosion is permanent, but in some cases it can be somewhat reduced with special glass care products.

Do you have questions about how to best take care of your glassware? Feel free to contact us at kundeservice@hadeland-glassverk.no – we're happy to help you.