Quality & certifications
Scientific Testing. Every Batch.
Our in-house RT-PCR facility checks A1/A2 in the animals behind our sourcing pools, and every despatched lot is tested against the specification written into your contract — FAT, SNF, protein, acidity, MBRT, alcohol stability, adulteration, microbiology and GC where required. This page sets out the full panel, the COA content and what we will not claim.
- RT-PCR A1/A2 verification
- GC · FAT/SNF · MBRT
- COA & traceability
- 90:10
- Contracted A2:A1 procurement specification basis
- RT-PCR
- In-house RT-PCR A1/A2 verification facility
- 9+
- Parameters in the standard batch testing panel
- COA
- Certificate of Analysis released per despatched lot
A1/A2 verification
In-House RT-PCR and the 90:10 A2:A1 Specification
We operate an in-house RT-PCR facility used to check A1/A2 in the animals contributing to our sourcing pools.
- A2 beta-casein (target 90%)
- A1 beta-casein (max 10%)
A procurement basis established through RT-PCR A1/A2 verification of contributing animals — not a per-litre protein guarantee.
Supply programmes can be contracted against a defined 90:10 A2:A1 procurement specification. This is a specification on the composition of the sourcing pool, established through RT-PCR A1/A2 verification of the contributing animals and maintained through controlled entry and exit from the pool. It is stated as a procurement basis, not as a guaranteed protein ratio measured in every litre despatched.
The distinction matters and we keep it explicit. We use RT-PCR to check A1/A2 in the animals of a sourcing pool. Characterising the β-casein variants present in a specific milk sample is a protein-level analysis using different methods. Where a buyer requires lot-level protein characterisation, it is written into the specification as a separate parameter with its own method. Full methodology is set out on our A1/A2 testing and RT-PCR page.
Testing panel
Parameters, methods and why buyers ask for them
This is our standard panel. Buyers can extend it — additional parameters, tighter bands or higher sampling frequency — as part of the supply specification.
| Parameter | Method / basis | Why buyers ask for it |
|---|---|---|
| FAT | Gerber method / calibrated infrared analyser | Pricing basis and product yield planning. |
| SNF | Lactometer reading / infrared analyser | Solids balance and indirect screen for added water. |
| Protein | Infrared analyser calibrated to a reference method | Yield planning for paneer, cheese and standardised products. |
| Titratable acidity | Titration, reported as % lactic acid | Freshness and evidence of microbial acid development. |
| MBRT | Methylene blue reduction time under controlled incubation | Rapid indirect indicator of microbial load. |
| Alcohol stability | Ethanol stability screen at defined concentration | Predicts stability of the lot under heat processing. |
| Adulteration screening | Freezing point, neutralisers, starch, urea, detergents | Compositional integrity at collection level. |
| Microbiological testing | Standard plate count and further counts where specified | Hygiene verification for incoming-material acceptance. |
| GC-based analysis | Gas chromatography, applied where the specification requires it | Fatty-acid profiling, including confirmation of foreign fat. |
| A1/A2 status | In-house RT-PCR on animal samples | Verification of the A2:A1 basis of the sourcing pool. |
Documentation
Certificate of Analysis and batch records
A COA is only useful if a third party can reconstruct the lot from it. Ours is built to that standard.
Identity
Batch number, tanker identification, quantity, collection, chilling and despatch timestamps.
Sampling
Sampling point, method, date and time, and sample temperature on receipt at the laboratory.
Results
Each parameter reported with unit, method or reference standard, result and the specification limit applied.
Release
Analyst name and signature, date of issue and a clear conformity statement against the agreed specification.
Traceability record
Contributing collection centres, chilling logs and farmer records retained and retrievable for audit.
Retention samples
Retention samples held for an agreed period to support any post-delivery investigation.
What we do not claim
Precision Over Superlatives
We do not describe our milk as pure, healthiest or medically beneficial, and we do not present an RT-PCR A1/A2 result as a protein measurement. Buyers making regulated claims need a supplier whose documentation is narrower than their marketing, not wider.
Talk to our procurement team
Request a sample Certificate of Analysis
Share your daily or monthly volume, breed preference, destination and quality specification. Our procurement team responds with an indicative commercial proposal and a sample Certificate of Analysis.