How Long Does Yeast Last In A Jar?
The shelf life of yeast depends on the type of yeast and the storage conditions. Active dry yeast can last up to two years in an unopened jar if kept in a cool and dry place. Once opened, the yeast should be stored in an airtight container in the refrigerator and used within six months. Instant yeast has a longer shelf life and can last up to three years in an unopened jar. Once opened, it should also be stored in an airtight container in the refrigerator and used within six months to ensure its potency.