It helps to reduce the risk of a food safety incident. Detects as little as 50µg of protein on surfaces and in solution. Tests for a the presence of proteins to verify effectiveness of cleaning. Visual reading of a color change indicates the presence of detectable levels of protein.3M Clean-Trace Surface Protein Plus Test Swab PRO100 is a simple, quick, and reliable method of checking for the removal of protein residues after cleaning and quickly identifies contamination.This sensitive tool detects as little as 50µg of protein on surfaces. A quick, easy visual reading of a color change indicates the presence of detectable levels of protein and the fast results allow immediate corrective action. The 3M Clean-Trace Surface Protein Plus Test Swab PRO100 can be integrated into any Hygiene Management Program where risk areas can be effectively monitored for cleaning effectiveness. As an additional benefit, it can help to reduce the risk of biological contamination, where food residues on surfaces could potentially provide nutrients for spoilage or pathogenic bacteria to thrive. This easy-to-use device requires minimal training. Not intended for consumer use. Monitoring the effectiveness of cleaning in critical areas helps to reduce the risk of a food safety incident.