<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Why Tin in Canned Food Comes From the Can, Not the Crop — page updates</title><link>https://heavymetalcertified.com/articles/tin-canned-food-acidic-matrix-migration</link><description>Published revisions of this Heavy Metal Certified page.</description><atom:link href="https://heavymetalcertified.com/feeds/articles/tin-canned-food-acidic-matrix-migration.xml" rel="self" type="application/rss+xml"/><item><title>Why Tin in Canned Food Comes From the Can, Not the Crop</title><link>https://heavymetalcertified.com/articles/tin-canned-food-acidic-matrix-migration</link><guid isPermaLink="false">https://heavymetalcertified.com/articles/tin-canned-food-acidic-matrix-migration#revision-63b526b0bbad6f75</guid><pubDate>Mon, 21 Sep 2026 04:04:58 GMT</pubDate><description>Inorganic tin in food migrates from unlacquered cans into acidic contents, not from soil, and its acute gut-irritant threshold sits far above lead and cadmium limits.</description></item></channel></rss>