How long does UHT/Long life milk last once opened?
UHT or ‘long-life’ milk typically lasts six to nine months in the pantry unopened. Once opened, it should be refrigerated and used within seven days.
Last updated 21/03/2024
(UHT) stands for ‘ultra-heat treatment’ milk – also known as long-life milk. This product is heated to 140°C for two seconds, destroying any trace of harmful bacteria and other micro-organisms, which helps to extend its shelf life. It is then packaged in a sterile container, ready to be enjoyed.
If not opened and stored in dry, ambient conditions with low light, like your typical pantry, it can last up to nine months. However, it’s always a good idea to check the ‘best before’ date on pack to ensure the milk is safe to enjoy.
Once opened it needs to be refrigerated and can be used normally within seven days.
To track this safely, mark the carton with the date it was opened and discard after seven days.
Long-life milk is available in full-fat, reduced-fat, low-fat, modified and skim.
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