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Rapid Protein Residue Test

PRO-Clean™ is the easiest and most accurate way to verify the cleanliness of food equipment surfaces. Simply swab a surface and release the reagent. If protein residue is present, the reagent will turn purple – the more contamination, the quicker the color changes and the darker it becomes. PRO-Clean™ instantly validates surface hygiene, allowing immediate corrective action to be taken when necessary.

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Key Benefits

A quick and easy-to-use way to test cleanliness of surfaces. Change of colour verification without the need of additional instruments or interpretation.

Results in 10 minutes

All-in-one device



100% recyclabe

No training required


Reliable and accurate changeover cleaning verification.

Why test for protein residue? Protein is more difficult to remove from surfaces than glucose or other residues, so it’s a good indicator for surface contamination. If you need to verify protein removal quickly, PRO-Clean is reliable and accurate.

No interpretation required.

The results couldn’t be easier to read. If protein is present in a sample, the reagent in the device will turn purple for immediate verification that is simple for any user to understand without interpretation or instrumentation. To learn more, watch the video above.




Purple - Fail


dark purple fail


Proven Performance

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How to Use

Download and view these essential files to learn how to use this product.