Protein Residue Test
This is an interesting test – detecting protein residue. I know that regulators love this test as it proves that the equipment surface in a food manufacturing or precessing plant is clean. However theres been a push into smaller food manufacturers and even the local butcher, deli and restaurant. The Protein Residue Test consist of a sterile swab in side a plastic tube.
You remove the swab, smear it onto the cleaned surface and then re-insert it back into the swab holder. Break off the bulb to release the special liquid and within 10 minutes you’ll know whether the surface is cleaned or not. if it’s green, it’s clean. If it’s purple it’s dirty.
Hey it’s a good way to check if cleaning staff are actually cleaning!
