# Potassium nitrate — Food additive regulatory approval status — US FDA vs EU

For Potassium nitrate, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.160; use conditions is curing agent in the processing of cod roe, in an amount not to exceed 200 parts per million of the finished roe, recorded from its source on 2026-08-15.

- **Additive:** Potassium nitrate _(verified: appears in the quote below)_
- **Jurisdiction:** US FDA (21 CFR 172–178) _(our reading, not quoted from the source)_
- **Status:** permitted _(our reading, not quoted from the source)_
- **Citation:** 21 CFR 172.160 _(our reading, not quoted from the source)_
- **Use conditions:** curing agent in the processing of cod roe, in an amount not to exceed 200 parts per million of the finished roe _(verified: appears in the quote below)_

## What the source says

> § 172.160 Potassium nitrate. The food additive potassium nitrate may be safely used as a curing agent in the processing of cod roe, in an amount not to exceed 200 parts per million of the finished roe.

## Source

- https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-B

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [Food additive regulatory approval status — US FDA vs EU](https://referencesource.org/food-additive-approval-status-us-vs-eu/).