Q:

What is sterilized milk?

A:

Quick Answer

Sterilized milk is created by heating milk through an ultra-high temperature process, also known as UHT. This process destroys microbes and bacteria found in the milk, increasing its shelf life.

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What is sterilized milk?
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Full Answer

Sterilization requires heating the milk to temperatures up to 135 degrees Celsius, and packaging the milk in aseptic containers. These containers are then sealed air-tight, closely monitored for microbes, and disinfected when needed.

When milk is heated, chemical reactions occur that may change its physical properties. Heating milk may cause a reduction of pH levels, precipitation of calcium phosphate and protein denaturisation. The chemical reactions in milk are not temperature-sensitive, and therefore using ultra-high temperature processes and rapid cooling and heating techniques helps to reduce the amount of chemical reactions in the milk.

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