A1 and A2 Beta Casein Testing - Manufactured Products

Analytica’s testing helps dairy manufacturers, marketers, and consumers to check for the A1 type beta-casein content of milk, milk powders, and nutritional products. Please note that the testing is designed for use in milk from bovine (cattle) animals, and is not able to be used to test beta-casein produced by other milking species like goats or sheep.

Testing used by manufacturers reports the percentage of the beta-casein in a sample that is A1-type, with a reporting limit of 1%, and can be compared with any specification or requirement that the herd owner may wish to work to.

Bulk milk monitoring

Manufacturers can test samples of the bulk milk being received from suppliers to identify how much A1 type beta-casein is in there, as part of quality and composition monitoring.

Manufactured milk, and milk powder

Samples of in-process or finished product can be tested to confirm their A1 type beta-casein content, for comparison with product specifications.

Nutritional powders, including infant formula and infant formula base powders

These are very complex sample types, but as with other milk powders in-process or finished products can be tested to confirm their A1 type beta-casein content, for comparison with product specifications.

Other sample types

If you have other sample types requiring testing, please contact us to confirm whether those sample types have been previously validated. In some cases the testing may not be required because the product contains little or no protein (e.g.  butter or AMF). Cheese is a challenging sample type to work with due to the very extensive protein modification that takes place during the manufacturing process.

Sending and preserving samples

Samples can be sent to Analytica from around NZ using normal courier systems. Overseas samples can also be sent from other countries by following our instructions about how to send samples from overseas.

If shipping liquid milk samples in NZ, its best if they are frozen prior to shipping, and that an insulated shipping container with frozen cooler pads is used to keep samples chilled for as long as possible during transit.  Bronopol preservative can be used to give further protection.  If shipping liquid milk samples from overseas, please contact us to learn about a simple preservation technique that we have confirmed can be used to protect liquid milk during a longer shipping period.

Dairy powders tend to be stable without special shipping conditions being in place.

How to take and submit a sample

How to take and submit a sample


Raw milk
A representative sample of 50-100 mL of milk is required.  Please keep chilled if being delivered immediately, or freeze then delicer chilled.

Dairy products
An unopened sachet or consumer package is required, with details of batch and product description to be shown clearly on the outside.

Download and complete our Analysis Request Form either in PDF format or as a Word document, and send it along with your samples to:

Analytica Laboratories Ltd
Ruakura Research Centre
10 Bisley Road,
Hamilton 3240 
New Zealand

Get Analysis Request Forms

Don’t forget to label each sample container with a unique name or code, matching the Sample Identification that you write on the Analysis Request Form. We will invoice you when we report your results. 

To send samples from overseas, please see our instructions and import permits.


Analytica Laboratories

P: +64 7 974 4740
E: sales@analytica.co.nz

Ruakura Research Centre,
10 Bisley Road, Private Bag 3123,
Hamilton 3214
New Zealand



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