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is PLA food safe?
(lemmy.dbzer0.com)
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this post was submitted on 07 Jul 2023
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It is possible to smooth PLA using ethyl acetate, but I don't know if that's good enough for food safety, plus you have to remove the ethyl acetate itself.
PLA won't survive in a dishwasher. PETG might, but there are no reasonable solvents for smoothing PETG.
Maybe it'd be best to print a mold in PLA, smooth with ethyl acetate, clean thoroughly, and then pour silicone into the mold.