As consumer demand for organic food continues to rise, so does the need for clarity around what makes food truly “organic.” With concerns over synthetic chemicals, hormones, and artificial additives, the organic label has become a trusted symbol of purity, sustainability, and health. But where does ozone—an all-natural, highly effective sanitizer—fit into the picture?
Let’s explore how ozone is currently regulated within organic food production under the USDA’s National Organic Program (NOP).
Understanding Organic Labeling: The Basics
The USDA’s National Organic Program (NOP) governs the standards and certification of organic products in the U.S. Under NOP regulations, products fall into three primary categories:
- 100% Organic – Made entirely with certified organic ingredients and processes
- Organic – Contain at least 95% certified organic ingredients
- Made with Organic Ingredients – Must contain a minimum of 70% organic content
Only products in the first two categories are allowed to display the USDA Organic seal.
For full NOP guidelines: National Organic Program
Ozone in Organic Food Production
Ozone is a naturally occurring molecule composed of three oxygen atoms. It’s been widely recognized for its sanitizing power—killing over 99.999% of most bacteria and viruses—and is commonly used in conventional food production. However, its application in organic food production is subject to specific USDA guidelines.
Here’s how ozone is currently permitted under organic regulations:
1. Ozone as a Food Ingredient
Ozone can be used as an ingredient in processed foods labeled “Organic” (≥95%) or “Made with Organic Ingredients” (≥70%). However, its use disqualifies a product from receiving the 100% Organic label.
Regulation: 7 CFR §205.605
This section outlines nonagricultural (nonorganic) substances, including ozone, that are allowed in processed organic foods.
2. Ozone in Crop Production
Ozone is also permitted for specific applications in organic crop production—but with limitations. It is only approved for use as an irrigation system cleaner, helping maintain sanitary conditions without affecting the organic status of crops.
Regulation: 7 CFR §205.601
Ozone is listed under approved synthetic substances, with the important restriction that it must not contaminate crops, soil, or water.
3. Ozone for Surface Sanitation
In food processing, distribution, and retail settings, ozone is allowed for sanitizing food contact surfaces. This includes equipment, packaging stations, and handling areas, offering a safe, residue-free alternative to chemical sanitizers.
This use is referenced in CFR 205.605 and clarified in the USDA document:
The USDA National Organic Program Requirements for Food Retailers and Distribution Centers
“Hydrogen peroxide and ozone are also permitted [as sanitizers]…” – USDA
Room for Growth: The Future of Ozone in Organic Production
While ozone is already recognized by the FDA and USDA as GRAS (Generally Recognized as Safe) for direct food contact in conventional processing, its use in organic production is still limited.
Given its natural origins—produced from oxygen and reverting to oxygen after use—ozone presents a compelling case for wider adoption in organic practices. It offers:
- Chemical-free sanitation
- No harmful residues
- Effective pathogen control
- Environmentally safe oxidation
We’re optimistic that as awareness grows, the NOP may expand the scope of ozone use in certified organic production.
Conclusion
Ozone is a powerful and sustainable tool that aligns well with the goals of organic agriculture. While current USDA regulations allow for its use in certain areas—such as irrigation system cleaning and surface sanitation—its role is still evolving.
As the industry continues to seek safer, greener solutions, ozone stands out as a valuable option for producers committed to organic integrity and food safety.
Have questions about how ozone can support your organic production goals?
Contact us to learn more about compliant ozone solutions and equipment.
You can find more information here: https://www.oxidationtech.com/applications/ozone-regulations-in-organic-food-production.html