How to Detect Casein in Foods and on Surfaces

Testing for the casein protein is essential when you need confidence that a food, beverage, or surface is truly dairy-free. SimpleLab’s Casein Allergen Food Swab Test provides targeted, laboratory analysis for casein in one sample using a certified mail-to-lab test kit. This simple process offers a reliable means to measure casein content of a single sample at low levels without second guessing your results.

How to Test for Casein

Accurate casein detection requires collecting a sample of interest which can be subjected to robust testing via laboratory instrumentation. Quantification of caseins just isn't possible using over-the-counter or DIY test strips. 

Your mail-to-lab kit includes everything needed to collect a swab from a food, drink, or surface:

• Use the sterile swab to collect a representative sample.
• Seal the sample, fill out and include the chain of custody, and prepare the package for shipment. 
• Send the kit to the certified laboratory using prepaid overnight shipping.
• Receive a secure, digital report after analysis (typically within 10 business days).
  

Laboratory detection uses ELISA, an established method for quantifying casein at low concentrations (down to 0.2 PPM). This process ensures controlled handling, validated laboratory methods, and clear, actionable results.

Who Should Use This Test Kit

This kit is designed for anyone who must verify the presence or absence of casein in food products or on surfaces:

• Commercial kitchens and food manufacturers needing sanitation checks
• Quality control teams verifying allergen-free production lines
• Households managing dairy and cow’s milk allergies
• Food service operations required to demonstrate allergen control
• Individuals seeking best available methods for casein in their samples 

One kit tests a single location and includes all sampling materials, chain of custody, overnight shipping, certified lab testing, and a digital report.

Order the Casein Allergen Food Swab Test:

Frequently Asked Questions

Is casein testing the same as testing for “milk allergens”?

Yes. Caseins are the major class of proteins in milk and dairy (80% of total protein). As a common milk protein, caseins have been positively linked with cow’s milk allergies or intolerance.

Will a rapid test strip work instead?

DIY allergen strips and disks are not reliable for low-level detection or regulatory decision-making. Laboratory ELISA testing is the standard method for accurate casein analysis.

Can I test finished products and surfaces?

Yes. The swab-based testing method used with this kit is validated for foods, beverages, and environmental surface samples.

How long until I receive my results?

After overnight return shipping, laboratory analysis is completed in approximately 10 business days.

Can multiple samples be quantified using one test kit?

Each kit provides sufficient material for analysis of one (1) sample. For multiple surfaces or products, order one kit per sample or location.

Questions? Contact Us

SimpleLab makes professional testing for allergens accessible where and when you need it.

If you have any questions about testing with SimpleLab, reach out to our customer support team any time.