Pasteurised Milk Processing Line
A pasteurised milk line for chilled distribution, built around a plate pasteuriser with high heat recovery and a homogeniser that keeps the cream from separating.
Key Specifications
| Capacity | 2,000 / 5,000 / 10,000 / 30,000 L per hour |
|---|---|
| Pasteurisation | 72-75 degrees C for 15-20 seconds |
| Heat recovery | 85-90 percent on the plate pack |
| Homogenisation | 200 bar, single or two stage |
| Shelf life | 5-14 days chilled |
| Filling | Bottle, pouch or carton, chilled chain |
| Standard | PMO or EU 92/46 compliant holding tube |
Heat recovery is the economics
A plate pasteuriser with 90 percent recovery needs only 10 percent of the energy that direct heating would require. On a 10,000 L per hour line that difference is the largest single operating cost item after raw milk.
Why homogenise, and where in the line
Homogenisation at 200 bar breaks fat globules so cream does not rise during chilled storage. It sits downstream of the pasteuriser and upstream of the holding tube in most configurations, because homogenising raw milk can cause lipase rancidity.
Flow diversion for safety
If the outlet temperature drops below setpoint, a flow diversion valve returns product to the balance tank. The diversion valve must be tested and documented every shift; it is the single component that makes pasteurisation a validated process rather than a heating step.
Typical Applications
- Fresh milk for urban distribution — Where cold chain is reliable and consumers prefer fresh over UHT.
- Yoghurt and cheese milk preparation — The same pasteuriser supplies standardised, pasteurised milk to downstream fermentation.
- Flavoured milk and dairy drinks — Homogenisation and degassing give a stable emulsion for cocoa and flavour systems.
Related Equipment
Frequently Asked Questions
What shelf life should I expect?
Five to fourteen days chilled, depending on hygiene, filling temperature and packaging barrier.
Can the same line run UHT?
Not without a different steriliser and aseptic filling. Pasteurisation and sterilisation are separate process designs.
How is the diversion valve tested?
By simulating an under-temperature condition and confirming the valve diverts, with the result logged each shift.
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