StacksVerified U.S. regulatory reference

21 CFR §172.180

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The food additive stannous chloride may be safely used for color retention in asparagus packed in glass, with lids lined with an inert material, in an amount not to exceed 20 parts per million calculated as tin (Sn).