Posted on 04/27/2015 2:52:07 PM PDT by rickmichaels
I think you can get a idea what of type the milk is by the expiration date. HTST pasteurized milk typically has a refrigerated shelf life of two to three weeks, whereas ultra pasteurized milk can last much longer when refrigerated, sometimes two to three months.
After opening, any milk could become contaminated with spoilage bacteria, but you can generally count on it to remain fresh for at least seven to 10 days after the container is opened, depending on how cold the refrigeration.
There is another proces, Ultra High Temperature (UHT) sterilization raises the temperature of milk to at least 280° F for two seconds, followed by rapid cooling. UHT-pasteurized milk that is packaged aseptically results in a “shelf stable” product for a year that does not require refrigeration until opened.
The cost will be affected by shelf life with the HTST costing more.
Thanks.
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