Expiration & Storage Tips
When does white miso paste expire?
Unopened, white miso paste can last for a year past the printed date; just make sure to keep it in a cool and dark place. Once you've opened it, it's recommended to consume it within a year, keeping it in your refrigerator. While technically, it has no expiration date due to the salt and fermentation process which act as natural preservatives, its flavour profile tends to change over time, becoming stronger and less sweet. Additionally, it's not commonly frozen in households, but it's totally fine to do so if you want to extend your miso's life past the one-year mark. Just make sure it's sealed and protected from freezer burn.
How do you tell if white miso paste is bad?
While it's rare for white miso paste to go bad, certain signs might indicate spoilage. These include a drastically darker color, an abnormally strong or off-putting smell and the presence of mold. If any of these signs are apparent, it's better to discard your miso paste. Always do the sniff and look test before using your miso, especially if it's been in your fridge for a while.
Tips for storing white miso paste to extend shelf life
• Always store your miso paste in a refrigerator after opening. This prevents changes in color, taste, and texture, maintaining its original quality.
• Keep your miso paste in an airtight container to prevent it from drying out and absorbing smells from other foods.
• If freezing, consider portioning out your miso into ice cube trays. Once frozen, transfer the cubes to a sealed bag. This makes it easier to use without having to defrost the entire amount.
• Avoid using wet utensils to scoop out your miso from its container as water can promote bacterial growth and spoilage.
• If your miso begins to separate, simply give it a good stir before use.