Masquerouge
Deity
When I lived in France, all the milk I bought was pasteurized using the UHT technique. UHT involves holding the milk at a temperature of 280 °F or 138 °C for at least two seconds. This allowed the milk to be stored unrefrigerated for up to three months, and stay perfectly good. Thus when I went shopping, I bought milk for three months, and that was it.
Here in the US, all the milk I've found is not UHT-pasteurized, but I guess HTST. HTST involves holding the milk at a temperature of 161.5 degrees Fahrenheit (or 72 degrees Celsius) for at least 15 seconds. This allows the milk to be stored refrigerated for up to two weeks.
Consequently, we have to buy milk all the time, in small quantity, and we have quite a few jugs that turned sour: this never happened in France.
My question is thus: why is there no UHT milk in the US, when it is so much more convenient and safe?
The wiki link: http://en.wikipedia.org/wiki/Pasteurization. It does not explain why the US does not use the UHT method.
I'd like to know also what's the norm in your country: UHT or HTST?
Here in the US, all the milk I've found is not UHT-pasteurized, but I guess HTST. HTST involves holding the milk at a temperature of 161.5 degrees Fahrenheit (or 72 degrees Celsius) for at least 15 seconds. This allows the milk to be stored refrigerated for up to two weeks.
Consequently, we have to buy milk all the time, in small quantity, and we have quite a few jugs that turned sour: this never happened in France.
My question is thus: why is there no UHT milk in the US, when it is so much more convenient and safe?
The wiki link: http://en.wikipedia.org/wiki/Pasteurization. It does not explain why the US does not use the UHT method.
I'd like to know also what's the norm in your country: UHT or HTST?