Milk production and processing: from the European Union to the Hungarian Trappist

The journey of milk: from cooling to processing

A number of technological steps are used to ensure that milk is safe for consumption. Erlichné Anikó Drobni, TOLNATEJ Zrt. The Chief Engineer of Quality Control and LEAN explained the main processes of milk processing:

• Cooling and cleaning: After milking, the milk is quickly cooled to inhibit the growth of bacteria, and then cleaned by filtration or centrifugation.
• Adjusting the fat content: The fat content is reduced by skimming or increased by adding cream.
• Pasteurization: Heat treatment at 72-76 °C for 15-40 seconds, which aims to destroy pathogens.
• Homogenization: The milk is forced through a narrow gap at high pressure to break down the milk fat into small particles, preventing it from sticking together.

Modern technologies: ESL and UHT

• ESL (Extended Shelf Life): A short heat treatment between 100-135 °C, which extends the shelf life of the milk to 21-28 days.
• UHT (Ultra High Temperature): The milk is heat-treated at 136-142 °C for 2-6 seconds and then placed in aseptic packaging. Thanks to this, the milk can be stored for months without refrigeration.
• Buttermaking: the path to cream

During buttermaking, the cream is matured and then prepared using a frothing process. The main steps of the process are:

Physical maturation: The cream is kept at 2-6 °C so that the fat globules solidify.
Biological maturation: An acidification stage and an aroma production stage alternate.
Frothing: Under the influence of mechanical work, butter lumps form and the buttermilk separates.
Kneading: Excess water is removed and a uniform butter structure is created.

During buttermaking, the appropriate temperature and technological precision are essential to ensure the quality of the product.