Yes, miso can expire, but not in the way most foods do. While it won't become unsafe to eat, its quality degrades over time.
Miso's Shelf Life and Quality
Miso is a naturally preserved food, thanks to its high salt content. This means it can last a surprisingly long time. If stored properly in the refrigerator, miso itself does not go bad. However, its flavor and aroma will change over time.
- Refrigeration is Key: Keeping miso refrigerated is crucial for maintaining its quality.
- Taste Changes: After about a year, you might notice a subtle decline in the miso's flavor. It won't be spoiled, but the taste may not be as fresh or vibrant as it was initially.
Understanding "Expiration" in the Context of Miso
The term "expiration" for miso is more about a decline in quality rather than a sudden risk of spoilage. Unlike perishable items that quickly become unsafe, miso's shelf life is more about preserving its peak taste and aroma.
Therefore, while miso technically doesn't "expire" in the sense of becoming unsafe, its optimal quality is best enjoyed within one year of opening.
