Yes, yeast does expire.
While yeast doesn't exactly "go bad" in the sense of becoming unsafe to consume, its ability to leaven dough diminishes over time. Here's a breakdown:
- Dry Yeast Shelf Life: According to available information, unopened dry yeast typically remains active for about two years.
- Extending Shelf Life: Chilling or freezing dry yeast can extend its shelf life even further. Many bakers store their yeast in the refrigerator or freezer for this reason.
Therefore, it's important to check the expiration date on your yeast and store it properly to ensure optimal performance in your baking.
