It is the fermented soybean paste that has been used to make miso soup for centuries. It can go bad so quickly and become inedible, which leads to a lot of waste. Now there are strict guidelines on how long it should be stored before use, but this still doesn’t eliminate all risk. This article explores different ways you might get rid of stale or old miso soup without losing flavor or nutrients.,
Miso is a type of soy sauce that is fermented with salt and rice. It can last for years in the refrigerator but it does go bad.
You’ve chosen to branch out into Japanese cuisine and try miso soup, one of the country’s most popular dishes. Naturally, you’ve purchased a jar of miso paste, as well as a variety of additional components such as tofu or seaweed.
After a few times preparing the soup, you begin to wonder about the paste’s shelf life. You only use a few tablespoons at a time, and you don’t cook that soup on a regular basis. So you estimate that it will take you a few months to complete the container. Is it possible for miso paste to spoil?
Tofu, miso paste, and soy sauce
Maybe you purchased a jar of soybean paste, put it in the cupboard, and then entirely forgot about it. I’m sure I do it more often than I’d like to confess. I purchase food with the greatest of intentions, put it away, and then forget about it a few minutes later, only to “discover” it weeks or months later.
So you’ve discovered that jar with no expiry date on it. You’re unclear what to do with it since you can’t recall when you purchased it. Is it better to simply chuck it out?
These and other miso-related issues are addressed in this article. Read on if you have any concerns about the soybean paste going bad, shelf life, or storage. And because it seems that going bad is the most popular subject, let’s start there.
Is it Possible for Miso Paste to Go Bad? What Is The Best Way To Tell If Miso Is Bad?
Miso paste is created from fermented soybeans that have been seasoned with salt and other ingredients ([WIKI]). To begin with, soybean paste isn’t a perishable product ([SRM]), which means it won’t spoil if properly stored.
If you have an unopened jar that has been sitting around for months or even years, the paste will most likely be safe to consume as well as tasty. The flavor of the condiment changes gradually after you open the jar, but it should last for months or even years. It’s comparable to Tabasco sauce in that regard.
Miso, on the other hand, may deteriorate. The longer you keep it and utilize it, the more likely it is to become microbially contaminated. While fermented soybeans aren’t the best habitat for most bacteria to flourish, some may survive and proliferate. Throw it away if there’s mold on the surface or the fragrance has changed significantly ([MT][SRM]).
It’s vital to note that miso darkens with age, particularly if it’s stored in a warm climate. That color shift is normal and does not indicate that the miso has gone bad ([HM]). Miso also varies in color and flavor from batch to batch ([MT]), so even if you purchase it from the same supplier, it won’t always taste or look the same.
So you’re aware that miso has a long shelf life and does not rot quickly. But, as I previously said, the taste of the paste varies with time, so how long does the paste last?
What Is the Shelf Life of Miso Paste?
It’s difficult to talk about the shelf life of soybean paste. Some containers include a best-by date, although it’s usually there because the law demands it or because customers want to trust the product more (we trust foods with dates more than ones without). As a result, that date isn’t really valuable to us.
South River Miso ([SRM]) kept their product for 20 years and found that it was still edible after that time. There’s no reason why it shouldn’t work for other brands as well. As a result, you may expect an unopened jar to survive for many years.
The taste of the paste progressively changes after it is opened. It becomes less sweet to taste in most circumstances ([SRM]), but the flavor changes in other ways as well. And although some individuals like the improvements, others do not.
Try to complete the jar within 3 months ([MT]) for the most constant flavor, although the soybean paste should be pretty stable in taste for up to a year ([HM]). In other words, the longer you keep it, the more noticeable the changes in flavor will be.
So, if you’re wondering how long miso paste lasts after opening, there’s no one-size-fits-all answer. For a very constant flavor, I can offer you a range of 3 to even 12 months. And, if you don’t mind the shift in flavor, you’ll probably be able to go for a lot longer.
Now that you know that, it’s time to speak about storage, which might be a little perplexing as well.
How Should Miso Paste Be Stored?
Things aren’t as straightforward as one would hope when it comes to storing miso paste. Miso, like sauerkraut, is a fermented food that functions as a living organism ([HM]). If it hasn’t been pasteurized, don’t eat it. As a result, some companies advise storing unopened paste in the refrigerator ([HM]), while others do not ([MT]).
So the best course of action is to check the label to see whether the manufacturer recommends keeping it refrigerated at all times. Take note of how the goods was stored at the supermarket instead. If it was in the refrigerated part, it’s preferable to keep it there as well. It won’t go bad if you don’t, but the flavor may alter sooner than you’d want.
When it comes to an unsealed container, store it in the refrigerator ([WIKI]). While refrigeration isn’t required ([SRM]), it does increase the chances of the paste lasting longer. The flavor is more consistent, and the chilly temperatures make microorganisms less appealing.
While it comes to additional storage tips, bear in mind that the container should be kept closed when not in use. Also, while scooping the paste, be sure to use clean spoons.
When you need to add miso to miso soup or ramen quickly, it’s tempting to use whatever tool you have on hand, but it’s crucial to do the right thing here. Your soybean paste will repay you by storing well and not going bad for a long time.
Putting it all together in a nutshell
- Unopened miso paste lasts for years; once opened, the taste gradually changes, but it remains safe for months or even years.
- The darkening of soybean paste is a normal response and does not indicate that the food has gone bad.
- Follow the storage instructions on the label; if there aren’t any, refrigerate at all times, or store in the fridge after opening.
Miso is a Japanese soybean paste that can be stored in the refrigerator for up to two weeks. A miso paste will last refrigerated for at least one month, but it won’t last forever. Reference: how long can miso last refrigerated.
- how long does miso paste last once opened
- how to store miso paste after opening
- how long does miso last in fridge after opening
- how to tell if miso paste has gone bad
- does miso soup go bad if left out