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Sterilised milk
Sterilised milk

Sterilized milk distinguishes itself by undergoing a high-temperature treatment, reaching 115-130°C for at least 30 minutes. This process effectively eliminates all bacteria, including resistant spores, offering a milk product with an extended shelf life compared to pasteurized or raw milk.


Advantages and Drawbacks


Shelf Life: One of the chief benefits of sterilized milk is its lengthy shelf life. It can be stored for several months without refrigeration, making it a convenient option in regions where refrigeration is unreliable.


Taste and Nutrition: Despite its convenience, the high-temperature process can negatively affect the taste and nutritional value, imparting a caramelized flavor and reducing some nutrients.


Market Dynamics


Although sterilization offers practical advantages, its market scope remains limited compared to other types like pasteurized or UHT-treated milk. Sterilized milk finds popularity in markets where refrigeration is not prevalent or milk supply is inconsistent, such as in specific developing regions.


As the demand for long-lasting milk products grows, particularly in developing regions, the sterilized milk market is expected to see stable growth, albeit remaining niche compared to other milk products.


Usage in Food Manufacturing


Sterilized milk plays a crucial role in food manufacturing, especially in products needing extended shelf life, such as baked goods and desserts. It ensures product safety without the need for refrigeration, essential for distribution in less developed areas.


Production Process


The commercial production of sterilized milk involves several steps:


  • Preheating raw milk to about 80-85°C to optimize the sterilization process.
  • Pumping the milk into a sealed, pressurized sterilization vessel.
  • Exposing the milk to high temperatures (115-130°C) for a minimum of 30 minutes.
  • Rapid cooling with a heat exchanger and packaging in sterile, sealed containers to ensure lasting quality.


Companies like Parmalat, Candia, Dairy Farmers of America, FrieslandCampina, Almarai, and Nestle dominate this market, leveraging advanced food processing plant design and food technology consulting to maintain high standards.


Conclusion


Sterilized milk remains a vital player in the global dairy market, particularly in regions with limited refrigeration facilities. Though its appeal may be niche compared to other milk variants, the right strategies in food factory design and collaboration with food manufacturing consultants can tap into its potential. Food engineering consultants play a pivotal role in optimizing these processes, ensuring safe and efficient production.

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