Q: I have an antique crystal decanter that is very dull looking. Any cleaning suggestions?

 

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A: To return some sparkle to your antique crystal decanter, try washing it in the sink (lined with a rubber mat or hand towels) with hand dishwashing liquid and a few drops of ammonia. This should cut away most of the dulling residue from both the interior and the exterior. Add 1/4 cup white vinegar to the rinse water and you should see some improvement.

If not, try washing your decanter with a product like CLR, Lime Away or any hard water stain remover.

If the glass feels rough to the touch, then it is possible the glass itself has been damaged. Some experts claim this can occur from repeated cycles in the dishwasher. Or it may just be a function of time with antique pieces such as yours.

Another, more aggressive method to return the crystal sparkle to your decanter is to clean it with regular dish soap, then scrub the crystal gently with No. 000 (very fine) steel wool. If this does not remove the clouding, it is likely the glass is damaged beyond simple restoration.