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Rapid Protein Residue Test

AllerSnap™ is a quick and easy way to verify the cleanliness of surfaces by detecting protein residues left behind after cleaning. By simply swabbing the area and activating the device, you release a reagent that turns color, providing a qualitative and semi-quantitative result of the protein levels on the surface: green means clean and purple means re-clean. The more protein present, the quicker the color change to purple and the darker the color. AllerSnap quickly validates surface hygiene, allowing for immediate corrective action to be taken when necessary.


AllerSnap Swab


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The proof is in the color.

Green means clean, and purple means re-clean. Protecting your product quality and ensuring customer safety has never been easier. The more protein in your sample, the deeper and dark the purple becomes. There's even a color chart printed on the label to help with interpretation and eliminate any guesswork.

swab tips Allersnap

results 1 Pass

greygreen Caution

results 2 Fail

results 3 Fail

results 4 Fail

Add this device to screen them all.

AllerSnap is both cost-effective and time-saving - especially when testing for multiple surface allergens. One swab test checks for all proteins, quickly confirming the hygiene of a surface and eliminating the need to run multiple expensive allergen-specific tests. If a surface is cleaned properly, all protein residues should be removed. For more information on how to incorporate AllerSnap into your cleaning program refer to the resources below. 

      allergens supersnap   

A prevention program that works for you.

Studies have shown that incorporating high-sensitivity ATP testing with protein residue detection can result in an ultra-efficient surface allergen prevention program. See the research below. With SuperSnap and the EnSURE monitoring system, you can maximize your allergen prevention program by eliminating cross-contamination, ensuring product integrity, and protecting brand reputation, determining the existence of posssible allergens before they make it into your product. How does it work? SuperSnap is a highly sensitive all-in-one test that detects extremely low levels of ATP residue, similar to low levels of protein residue. Test results are measured with the EnSURE and data is recorded with SureTrend software, so you can track, trend, and analyze your test results with charts and graphs. Learn more about SuperSnap.

Ensure SuperSnap



Video Demo


  • Results in 15-30 minutes depending on sensitivity requirements
  • Proactive, qualitative approach to verification 
  • Broad-range, non-specific protein screening is more cost-effective when allergen-specific tests are not required
  • Eliminates mistakes and waste
  • No separate wetting agent required
  • No reconstitution step ensure consistent repeatable results


  • All-in-one device
  • Pre-moistened swab provides reliable collection recovery and detection to ensure consistent reliable results
  • Easy to use and activate
  • Patented Snap-Valve™ technology - snap & squeeze
  • Write-on swab tube label
  • Temperature stable, sensitive liquid-stable chemistry
  • Small, light-weight device
  • Low carbon foot print (100% recyclable) - Recyclable #7
  • Shelf life:
    • 18 months at room or refrigerated temperatures (2 - 25°C)
  •  Sensitivity:
    • Detects 3 µg protein after 15 minutes at 55°C or 30 minutes at 37°C 

Catalog No.

Catalog No Description Qty
ALS-100           AllerSnap™ Rapid Protein Residue Test    100