Damage to Glassware and Other Dishes

What you should not put into the dishwasher

Cutlery and tableware manufactured in whole or part from wood. They become faded and unsightly in appearance. Furthermore the adhesives that are used are not suitable for the temperature that occurs inside the dishwasher.

Delicate decorative glassware and vases, special antiques or irreplaceable china. The decorative patterns on such items will not be dishwasher-proof.

Plastic objects that are not resistant to hot water, copper and pewter utensils are also not suitable. Decorative patterns printed or painted onto the surface of crockery, glasses, etc., aluminium and silver items tend to become discoloured or faded if washed in the dishwasher.

Some types of glass can become opaque in appearance after they have been washed many times in a dishwasher. Highly absorbent materials, such as sponges and towels should never be placed in the dishwasher.

IMPORTANT: Dishes or cutlery that have been soiled by tobacco ash, wax, grease or paint, should not be put in the dishwasher.

Possible causes

•Type of glass or manufacturing process

•Chemical composition of detergent

•Water temperature and duration of dishwasher programme.

Suggested remedy

•Use glassware or porcelain dishes that have been marked ‘dishwasher-proof’ by the manufacturer.

•Use a mild detergent that is described as ‘kind to dishes’. If necessary, seek further information from detergent manufacturers.

•Select a programme with a low temperature and a short duration.

•To prevent damage, take glass and cutlery out of the dishwasher as soon as possible after the programme has ended.

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