---
kind: "section"
citation: "21 C.F.R. § 173.355"
title: "21"
number: "173.355"
heading: "Dichlorodifluoromethane."
url: "https://uscodex.org/cfr/21/173.355"
---

# §173.355. Dichlorodifluoromethane.


The food additive dichlorodifluoromethane may be safely used in food in accordance with the following prescribed conditions:

- (a) The additive has a purity of not less than 99.97 percent.
- (b) It is used or intended for use, in accordance with good manufacturing practice, as a direct-contact freezing agent for foods.
- (c) **To assure safe use of the additive—**
  - (1) The label of its container shall bear, in addition to the other information required by the act, the following:
    - (i) The name of the additive, dichlorodifluoromethane, with or without the parenthetical name “Food Freezant 12”.
    - (ii) **The designation “food grade”.**
  - (2) The label or labeling of the food additive container shall bear adequate directions for use.

## Notes

### Authority

Authority: 21 U.S.C. 321, 342, 348.

### Source

Source: 42 FR 14526, Mar. 15, 1977, unless otherwise noted.