Recombined Milk Production Line

Recombined milk results from adding water to skim-milk powder (or WMP) and separately dosing milk fat until the desired composition is reached, creating liquid milk indistinguishable from fresh milk — yet without the need for a local dairy herd. This method is indispensable for regions with limited raw-milk supply or cold-chain infrastructure, because powders can travel long distances and be rehydrated on demand.

ProTrus engineers a closed, CIP-ready system that automates dosing, mixing, homogenisation and HTST/UHT heat treatment, then transfers the product directly to an aseptic filler. The result is microbiologically safe milk with a chilled life of 14 days or an ambient life of 6 – 9 months, depending on the selected process window.

Key Processing Steps & Equipment

1. Water preparation & powder dispersion – Reverse-osmosis water at ≈ 40 °C is dosed into a high-shear mixer; controlled vortex action prevents powder agglomerates and minimises oxygen pick-up, safeguarding taste.
2. Fat melting & emulsification – An inline or jacketed tank melts anhydrous milk fat (or vegetable fat), which is injected and emulsified to 1–3 µm droplets, ready for downstream homogenisation.
3. Standardisation & pasteurisation/UHT – Inline refractometry keeps total solids on spec; then HTST 72 °C / 15 s or UHT 138 °C / 4 s eliminates pathogens while preserving functional proteins.
4. Aseptic filling & packaging – Product is cooled to 20 °C and filled into Tetra Brik® Aseptic, Tetra Top® or PET bottles, allowing ambient distribution and extended shelf life with a lower carbon footprint than HDPE.