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How do you clean zinc canning labels

I bought a box of zinc canning labels and I need to clean them. Don't worry, I won't be canning with them...they are soap dispensers made out of canning jars.

thanks in advance

Jo-Anne King
country store - Johnston, RI
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You can use 5% sulfuric acid solution.Solution of ammonium citrate(5%,pH 7)can be usable ,too(dissolve 50 gm citric acid ⇦ on eBay or Amazon [affil link] in 1 lit water, add some ammonia, pH must be 7). Rinse well!

Good luck!

Goran Budija
- Cerovski vrh Croatia
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