ANSWER

Sodium copper chlorophyllin may be safely used to color citrus-based dry beverage mixes in an amount not exceeding 0.2 percent in the dry mix. It is not permitted to be used in cookies in USA.

References

Sodium copper chlorophyllin, 21 CFR 73.125 (2018).

U.S. Food & Drug Administration. (2018a). Color Additive Status List.

U.S. Food & Drug Administration. (2018b). Summary of Color Additives for Use in the United States in Foods, Drugs, Cosmetics, and Medical Devices.