Allergen Residue Testing


One challenge for food processors in a plant is changing from processing one product that contains an allergen to a similar product that does not contain the allergen, but they are produced on the same piece of equipment. The U.S. Food and Drug Administration (FDA) states that precautionary labeling cannot be used to substitute for Good Manufacturing Practices (GMPs). This implies that companies should thoroughly clean between products to prevent carry-over.

To monitor a plant’s sanitation and cleaning procedures, environmental samples taken after cleaning can be tested for the presence of specific allergens and validate the procedures.