I'd like to clean this (I assume steel) bottle opener a bit without damaging the lettering. Any suggestions on the best way to do that?
White vinegar? Cheapest possible ketchup or brown sauce as has the highest vinegar content. Leave it over night.
For citric acid try sour salt or lemon salt from your local Turkish shop
@lynx started
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I'd like to clean this (I assume steel) bottle opener a bit without damaging the lettering. Any suggestions on the best way to do that?