‘Alternatively Cured’ Meat Products
Many meat and poultry processors recognize that some consumers prefer meats that are cured using natural nitrate and nitrite sources like celery powder. These products are increasingly available in your grocery stores.
While meat processors believe these products should be called “cured” because they are cured by the presence of ingredients like celery powder, USDA regulates the label and requires that the products say “Uncured.” In a smaller font, the package declares “No nitrates or nitrites added except for that which naturally occurs in celery powder.” This labeling approach is required by USDA.
Source: North American Meat Institute