Glass Discussion & Research. No ID requests here please. > British & Irish Glass

acid removal of heavy scratching on u. glass.

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Nemmie:
Pineapple juice?

I have a few likely candidates for this method. I will report back with my personal findings.

Frank:
It is the bromelin in pineapple juice that tenderises meat, but it is not found in canned pineapple/juice only fresh. So polishing effect may also differ from fresh to canned. Pineapple contains several acids as well as enzymes that it seems can affect things well stuck to glass.  Wonders of nature

Paul S.:
quote................ "It is the bromelin in pineapple......"       -          so presumably that's why the whole group are called Bromeliads.         Just as a guess I'd have imagined that the citric acid might also have had some effect, but maybe not.

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