Expiration & Storage Tips
When does miso broth expire?
Unopened, a package of miso broth or miso paste can last about 1-2 years from its 'best by' date. The 'best by' date is simply the manufacturer's estimation of optimal quality - not a safety date. Therefore, unopened miso broth could still potentially be safe and of great quality after this date. Once opened, refrigerate the product for ensured quality. If in a liquid form, it should be consumed within a week. When in the form of paste, it can last up to a year if properly stored. If it's homemade or frozen, it can keep its quality up to 4-6 months.
How do you tell if miso broth is bad?
There are a few signs that your miso broth has gone bad. For liquid miso broth, if it emits an off smell, changes color, or develops a slimy texture, then it's time to toss it. If it is in the form of a paste, look for any growth (like mold), a change in the color to a darker brown or any strong odd odor. When in doubt, it's safer to discard and replace it.
Tips for storing miso broth to extend shelf life
• Always store in the refrigerator after opening.
• For paste form, keeping it tightly closed in an airtight container can extends its shelf life.
• Homemade miso broth can be frozen for up to 4-6 months. When ready to use, defrost it overnight in the refrigerator or use the defrost setting on your microwave.
• Leftovers from opened packages can also be frozen using a similar regeneration process.
• Always make sure to use clean utensils when handling the product to prevent contamination.