Food Technology
There is a plastic coating inside every food can, and it is the most heavily regulated few microns in your kitchen
28 Aug 2026 · 12 min read
Your tomatoes never touch the metal of the can — a polymer lining a few microns thick is in the way, and that lining has been reformulated twice under regulatory pressure. Here is what migration actually means, why food-contact rules measure how much rather than whether, and the questions that separate a real compliance document from the words 'food grade'.
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