white bloom on glasses out of dishwasher

melb

Hi there my glasses look fine when I open up the dishwasher after end of cycle but within a few seconds they have developed a white bloom which is really offputting. this has just started happening after 4 years of use. The dishwasher is a bosch and has been a complete disappointment in terms of breaking down but the cleaning has always been fine until now. We top up salt rinse aid regularly and have been using only finish or Fairy tablets in last few months at suggestion of dishwasher repairman after using cheaper products for years. any suggestions please?

love-hearts

I've used every product under the sun and never found anything that stops that problem.

melb

thanks for replying - I'm just wondering why it's just started happening after all this time?

longbaygirl

I get this too.

I now stick to cheap glasses (M&S do them for 50p each) and replace them when they get a 'bloom' on them.

Any glasses I want to keep = expensive, I wash by hand and never put in the dishwasher.

angelavdavis

I find this happens when we use too much salt or detergent in the dishwasher. It is the salts attacking the surface of the glass. I use half the recommended dose to avoid this happening.

moonrakerz

DON'T put decent glasses into a dishwasher !!! Perversely, the better the quality of the glasses the worse the damage will be.

I always cringe when I see adverts for dishwashers or detergents on TV because they ALWAYS show people admiring how clean their glasses are - this is like showing people cleaning their antique furniture with sandpaper !

Apart from which I have far dirtier things than wine glasses to put in there - like plates !

See: http://en.wikipedia.org/wiki/Dishwasher

"Devitrification

Components found in dishwasher detergents can chemically scour the glass, causing tiny crystals, which can precipitate further crystal growth that can turn entire glasses cloudy[6]
Lead crystal should not be cleaned in a dishwasher as the corrosive effect of dishwasher detergent is high on such types of glass—that is, it will quickly go 'cloudy'. In addition, the lead in the crystal glass can be converted into a soluble form, which could endanger the health of subsequent users."

This does not apply to heat treated glass such as Pyrex.

maman

Agree with all above, use cheap kitchen glasses (Ikea?) and replace regularly. For everyday use (water etc) we have Perrier glasses that we bought in French supermarket which wash brilliantly with no marks. I guess it's because they're meant for commercial use.

melb

thanks for all replies - the thanks button has disappeared. But I still don't understand why it has suddenly happened? the glasses are only cheap supermarket ones by the way so it's not that I'm bothered about them being spoilt.

ateavista

As long as the glasses are't etched, let the dishwaher put it right! Put affected pieces in the dishwasher and start the COLD (important!) rinse cycle. When the sloshing starts, open the door (cycle stops) and pour 200ml vinegar into the bottom. Close the door (cycle restarts). Leave 2 hrs, then run hot rinse cycle. I've just done it with cutlery and glasses which suddenly "bloomed" after a dishwasher run - seemed pretty permanent, but now perfect.