Eight-step manufacturing process behind Korea's quality milk

The milk Koreans drink every day does not go straight from a farm into a carton. Before it reaches the table, raw milk must pass through an eight-step manufacturing process, from initial inspection all the way to shipment.

According to the Milk Promotion Board of Korea on Tuesday, the eight stages are: measurement and raw milk inspection, clarification, storage, homogenization, heat pasteurization and cooling, filling, product inspection, and refrigerated storage and shipment. Quality and hygiene are managed at each step.

The process begins the moment raw milk arrives at the factory. When a collection vehicle carrying milk from a farm pulls in, workers verify the quantity and take samples for a raw milk inspection. Five tests — checking for antibiotic residues, bacterial count, somatic cell count, milk composition and other criteria — determine whether the milk meets standards. This thorough check at the raw-material stage takes place before production begins.

Raw milk that passes inspection undergoes clarification to remove impurities, then moves to a storage stage where it is held under controlled conditions. During homogenization, milk fat and other components are evenly dispersed throughout the liquid. Rather than being packaged immediately upon arrival, the raw milk is gradually transformed into the finished product consumers recognize through each of these stages.

Heat pasteurization and cooling are the core steps that ensure the safety and quality of milk. The homogenized milk is pasteurized to reduce harmful microorganisms, then cooled before moving to the next stage. Both steps are carried out under set conditions to guarantee safety and to keep the product in a state suitable for refrigerated storage and distribution.

The cooled milk is filled into containers in a hygienic environment. The manufacturing process does not end there, however. The packaged product undergoes another round of product inspection to confirm its quality before moving to the refrigerated storage and shipment stage. The milk is checked not only when raw milk enters the factory but again after the finished product is ready.

Ultimately, the eight-step manufacturing process is a single, continuous chain of quality management — from the intake of raw materials to the shipment of finished products. Raw milk is verified through inspection, then clarified, stored and homogenized before being pasteurized and cooled, hygienically filled into containers, inspected once more and finally shipped under refrigeration.

Key management data throughout this process are recorded and monitored through a smart HACCP system. The production process is systematically managed so that all required controls — from raw milk intake through manufacturing to product inspection — can be verified at any point.

Quality control for fresh domestic milk does not stop at the factory. Raw milk itself is managed according to standards covering bacterial count, somatic cell count and milk composition, among other quality criteria. Once the product is complete, it is stored and shipped under refrigeration to reach consumers. Quality and safety are managed throughout production, and refrigerated distribution keeps the product in good condition all the way to the consumer.

Getting milk from a farm to a consumer's table requires many steps. Raw milk arriving at the factory first undergoes five inspection tests, then follows the eight-stage manufacturing process — clarification, storage, homogenization, pasteurization and cooling, filling and product inspection — before being shipped under refrigeration. Smart HACCP tracking and recording of key stages means the entire milk manufacturing process is managed in a systematic and verifiable way.

"Domestic milk has a quality management system that verifies standards at every stage, from the moment raw milk is produced through processing and distribution," said Lee Seung-ho, chairman of the Milk Promotion Board of Korea. "Quality indicators such as bacterial count, somatic cell count and milk composition, as well as safety-related criteria, are all managed against objective standards. We hope this helps consumers better understand and trust the production and quality management process behind Korean milk."