Fairlife milk is a shelf-stable product, as it goes through ultra-filtration which not only allows it to last for longer but which means it is lactose-free as well. A sealed bottle of Fairlife milk kept unopened in a dark, cool pantry, can last for up to 9 months, with the lower protein options lasting for up to 12 months.

When unopened, Fairlife milk can remain safe for consumption for up to 9 months, provided it is stored in a cool, dark place such as a pantry. For bottles with higher protein content, the shelf life can be up to 12 months. It's important to note that the expiration date on the packaging should still be observed as the ultimate guideline.