Hygiena AllerSnap is a rapid swab test that detects protein residue left on surfaces after cleaning. Many food allergens are proteins, so it's widely used in allergen cross-contact prevention programs to check that equipment has been cleaned properly between product runs. Swab the surface, snap to release the reagent and incubate at 37 °C. The liquid stays green if the surface is clean and turns purple if protein is present, with results in 30 minutes or less.
AllerSnap detects as little as 3 µg of protein (per Hygiena), with no instrument needed to read the result. It needs only a 37 °C incubator. It's sold in boxes of 100 single-use tests. Hygiena AllerSnap is available in Canada from Cambridge Environmental Products with CAD pricing and Canadian purchasing support.
Hygiena states AllerSnap detects as little as 3 µg of protein after 30 minutes at 37 °C. That helps catch low-level residue that visual inspection misses.
The reagent starts green and turns grey or purple as protein is detected. A faster, deeper colour change means more residue. No instrument is needed to read the result, so staff can interpret it on the spot.
AllerSnap detects total protein rather than one specific allergen. One test can check for residue from many different products, and it works faster than allergen-specific test kits.
The swab and reagent are in one self-contained device, with no pipetting or mixing. Hygiena describes the devices as 100% recyclable.
| Colour | Result | Action |
|---|---|---|
| Green (including green-grey) | Pass | Surface is clean. No further action. |
| Grey | Caution | Small amount of residue. Re-clean, rinse or re-test according to your protocol. |
| Purple | Fail | Not clean. Re-clean and re-test. |
Steps and interpretation are from the Hygiena AllerSnap instructions for use.
| Application | How AllerSnap Helps |
|---|---|
| Allergen changeover verification | Confirms protein residue has been removed before the next product run. |
| Pre-operational inspection | Checks food-contact surfaces after cleaning and rinsing. |
| Validating cleaning procedures | Shows whether a cleaning method removes protein residue consistently. |
| Spot checks | Visual result with no reader or luminometer needed. |
| Product | AllerSnap® High-Sensitivity Allergen Prevention Test |
| Item number | ALS-100 (Hygiena store item ASY0292) |
| Pack | 100 tests per box |
| Detects | Total protein residue (not allergen-specific) |
| Sensitivity | 3 µg protein at 37 °C, 30 minutes (per Hygiena) |
| Time to result | 30 minutes or less |
| Incubation | 37 °C (incubator required) |
| Result | Visual colour change: green (pass), grey (caution), purple (fail) |
| Storage | 2–25 °C; refrigerate at 2–8 °C for maximum shelf life |
| Shelf life | Use by the expiry date on the device and label |
| Use | Single use |
| Manufacturer | Hygiena |
Specifications are from the Hygiena AllerSnap product sheet and instructions for use.
Need the Safety Data Sheet or a certificate of analysis for a specific lot? Contact Cambridge and we'll request it from Hygiena.
Cambridge Environmental Products is a Canadian-owned laboratory supply distributor based in Ontario and has served Canadian labs since 1993. We supply Hygiena hygiene monitoring tests with CAD pricing and shipping across Canada. We work with food and beverage processors, QA/QC teams, sanitation managers, and research laboratories, and can help with quotes and standing orders. Browse our lab supplies collection for more.
It detects total protein residue on surfaces. Many food allergens are proteins, so it's used to verify cleaning in allergen control programs. It doesn't identify a specific allergen.
Hygiena states AllerSnap detects as little as 3 µg of protein after 30 minutes at 37 °C.
Yes. The test is incubated at 37 °C for 30 minutes. A dry block incubator set to 37 °C works.
Green means pass, grey means caution, and purple means fail. Compare the colour to the chart on the tube label.
Yes. Peroxide-based disinfectants can cause false positives, and strong alkaline sanitizers may cause false negatives. Test after cleaning and rinsing, before terminal disinfection.
Between 2 °C and 25 °C. For maximum shelf life, refrigerate at 2–8 °C. Let devices reach room temperature before use.
Yes. Cambridge Environmental Products supplies Hygiena AllerSnap across Canada with CAD pricing.
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