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Why is UHT milk less bacteria filled than pateurized?

Updated: 8/18/2019
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10y ago

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UHT milk goes through a very high heat treatment compared to pasteurisation. The goal of pasteurisation is to reduce bacteria and kill of any pathogens in the milk. This is achieved at relatively low temperature (72°C for 15 seconds).

UHT (Ultra Hight Temperature) kills off all bacteria and pathogens at very hight temperature (142°C for 2 seconds).

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Q: Why is UHT milk less bacteria filled than pateurized?
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