this post was submitted on 30 Sep 2023
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[–] [email protected] 2 points 1 year ago* (last edited 1 year ago) (1 children)

They need a liner on the inside mostly epoxy or polymer.

[–] [email protected] 1 points 1 year ago (1 children)

Ah I thought only paper products needed an inner coating like that. Is there a concern of it oxidizing or something?

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Aluminum is poisonous in larger amounts and a lot of can contents are pretty acidic. You could probably line them with non reactive metals like gold, but thst would be very expensive in comparison.