FDA, EPA and USDA References for Dry Ice in Food Production

Dry ice food regulations address uses of carbon dioxide in food production. Dry ice is solid carbon dioxide. The FDA, USDA and EPA sources below address different uses and regulatory contexts. They help food manufacturers distinguish food-grade media requirements from approval of a cleaning method.

These references do not establish blanket approval of dry-ice blasting in food plants by all three agencies. Specify food-grade media and define the equipment-cleaning task within the facility’s maintenance, sanitation and release program.

FDA dry ice food regulations and specified uses

FDA’s rule at 21 CFR 184.1240 affirms carbon dioxide as generally recognized as safe, or GRAS, as a direct human food ingredient under the stated conditions. It identifies uses including a processing aid, leavening agent and propellant or aerating gas. The rule requires the necessary purity for the intended use and levels consistent with good manufacturing practice.

This provision supports the food-use status of carbon dioxide. It does not certify a cleaning contractor, blasting machine or plant sanitation procedure. Read FDA’s carbon dioxide regulation reference and the current text of 21 CFR 184.1240.

USDA provisions alongside dry ice food regulations

USDA’s National Organic Program lists carbon dioxide in 7 CFR 205.605 among nonagricultural substances allowed as ingredients in or on processed products labeled organic or made with organic ingredients, subject to the regulation’s conditions. The listing appears in the synthetic substances section.

This organic-food provision has its own scope. It is not general USDA certification of dry-ice blasting or automatic organic certification of a food plant. An organic operation should coordinate its media and cleaning procedures with its certifier. Read USDA’s National List at 7 CFR 205.605.

Differences between EPA guidance and dry ice food regulations

EPA’s Technology Reference Guide for Radiologically Contaminated Surfaces describes dry-ice pellet blasting in Section 3.7. Its subject is remediation of contaminated surfaces, rather than food-production approval. The guide discusses the cleaning process and management of the removed contaminants. Read EPA’s dry-ice blasting technology section.

EPA’s Significant New Alternatives Policy, or SNAP, evaluates substitutes for specific ozone-depleting substances in specific end uses. A SNAP determination applies within that defined scope. It should not be presented as blanket food-plant approval. See EPA’s explanation of precision-cleaning substitute listings.

Food-safe media and environmental benefits

Food-grade dry ice provides a non-toxic, food-safe cleaning medium when quality, handling and use meet the facility’s requirements. During blasting it sublimates, with no spent abrasive grit to remove. The process introduces no cleaning solvents, detergents or wash water during the deposit-removal step.

These are specific environmental benefits. The removed deposits still require collection and disposal, and carbon dioxide requires ventilation and exposure controls. Describing these benefits is more informative than an unqualified claim that every dry-ice cleaning job is eco-friendly.

Apply the references to an equipment-cleaning plan

• Record the dry ice grade and supply requirements for the intended work.
• Identify food-contact surfaces and the equipment opened by maintenance.
• Define product protection, residue collection, ventilation and equipment isolation.
• Assign the facility’s sanitation, verification and release steps after deposit removal.

Dry-ice blasting can be incorporated into equipment maintenance without treating visible deposit removal as proof of sanitization, allergen removal or pathogen control. The facility defines and verifies those outcomes in its own program.

For practical applications, Manitoba Agriculture’s dry-ice blast cleaning resource describes food-processing and packaging equipment as well as supporting machinery. See our food processing service, food and beverage industries and equipment-cleaning quote form.