how to remove the bloom from crystalware ?

I have come across blooming in antique and vintage crystal vessels that I have purchased for my antiaue shop and have never found a solution.Residual Hard water depoits left on the side can be removed diluted Acide chlorhydrique (purchased in France) lime scale remove clear when applied turns yellow when scale is removed. A customer once told me Jewellers Rouge rubbed in for long time but quite a laborious task. I think blooming is a chemical reaction with moisture left on the glass crystal that reacts with the lead in the crystal so is not just on the surface.

m evans
April 2014

I agree that damaged caused by the dishwasher if usually irreversible.
However, I once had glasses that had seemingly permanent water spots. I liked them so much that I decided to just use them for everyday. I used them and handwashed and after a couple of weeks, the spots had disappeared. Vinegar, etc. had been of no help. You might try using and handwashing one.
I suppose you've tried CLR, LimeAway, etc?

ibstubro
November 2009

The only thing Iknow that causes this is washing in a dishwasher. Most crystalware is not dishwasher proof. If this is the cause, the "bloom" is actually damage, like micro-scratches, on the glass. If, on the other hand, it's a bloom caused by something like hard water, then try soaking in vinegar or solution of washing soda, and polishing with a microfibre cloth.

aliceM
October 2009