Can Miso Go Bad? – Here’s What You Need to Know? (Shelf Life, Storage Tips & Spoilage Signs)

Can Miso Go Bad? Does Miso Paste Go Bad?: If you would like to try Japanese cuisine, the best to try out of the staples is miso soup.  Have you brought a jar of miso paste a long back ago and you didn’t cook the miso soup till now?

Wondering how long does miso soup last fresh? Every time, you see this paste in your cupboard, you may think of how long does miso paste last in the fridge/pantry. Do you think anytime, that “can miso go bad?” by keeping for a long. If you do not know anything about miso you need to know about the good use of miso.

If you are interested to know more about information like storage tips, signs of spoilage, and the shelf life of miso. Check our article and read on!!

Can miso go bad

What is Miso?

Miso is made by fermenting soybeans with salt and a traditional Japanese ingredient called “Koji”. It is made by boiling rice, soybeans, or barley, which has a fermentation culture. It has a paste-like texture and is mainly used for soups.

Because of this unique taste of miso, it is often added as a salad dressing or used in marinades. Some of them will also add a little bit of miso to their vegetable dishes.

Can Miso Paste Go Bad? How To Tell If Miso Is Bad?

Yes, miso can go bad like another fermented ingredient, by storing it well it will have a long shelf life. Even some manufacturers claimed to have stored the miso products for years.  If you want to know that the miso has gone bad there are some signs.

Miso will not get spoiled easily. But over a period of time, it may reduce the quality and flavor. If you see mold growth, discoloration, odd smell, and change in taste then you can discard the miso paste. As the paste is fermented, it is not that easy to differentiate between usable and spoiled miso.

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Can Miso Go Bad

How Long Does Miso Paste Last? | How Long Does Miso Last After Opening?

As we have mentioned above, miso takes a long time to spoil because it features lots of salt. If you keep the miso paste for a long, gradually, it gradually decreases the quality and flavor. To know whether the miso has gone bad or not, just check the “best before date” or “best by date” printed on the label.

Just check out the table that was given below to know the shelf life of opened and unopened miso paste.

Forms Shelflife
Refrigerated Miso Soup 2-3 days
Opened Miso Paste, Refrigerated 3 months
Frozen Miso Soup 6 months
Unopened Miso Paste, Refrigerated Best-by-date plus 3-6 months
Frozen Miso Paste Indefinitely – 18 Months for best quality


shelf life of miso

How To Store Miso Paste?

If you want to increase the shelf life of miso, storing it in the best place is a good option. As it is a fermented paste, storing this paste is very easy. Here are some tips to follow for storing the miso paste.

  • Miso paste should not be kept near the heat elements, if the temperature changes, the taste of this paste may alter.
  • Always keep the unopened pack of miso in a cool, dry place.
  • Use clean spoons when you take out the miso paste from the container. A wet spoon may spoil the miso paste.
  • If you open the miso pack, keep it in the refrigerator after every use. That will be the best place.
  • And keep in mind that unopened packages of miso should not be it in the fridge.
  • You can store opened packs of miso paste in the fridge at the temperature of 250 – (-5)0.
  • After opening the pack, always make sure to keep the seal tightly after every use.

Interesting Facts to Know About Miso

Here are some of the most interesting facts that you can know about miso. Check out the interesting things below.

  • Miso is very rich in B-complex vitamins, enzymes, proteins, and probiotics.
  • The best substitute for the miso paste is salt, tamari, or concentrated broth.
  • Barley miso tastes more like chicken broth.
  • Miso is a thick paste, used for sauces, spreads, pickling veggies, and meat.

Interesting Facts About Miso

FAQs on Does Miso Go Bad

1. Is it ok to use expired miso?

Can I eat expired miso paste? Yes, miso can be consumed beyond the “best before date” or “best by date” with expected changes in quality, as it doesn’t show any signs of spoilage.

2. How long does miso stay good in the fridge?

Miso can stay good in the fridge and remain consistent for up to a year.

3. Will miso get moldy?

If you get a blue or white mold you can remove the scrap, you can use the remaining miso within a week.

4. Can you eat miso paste raw?

Yes, miso doesn’t need to be cooked. It’s ready to go as soon as you pop the lid on that tub.

Key Takeaways – Does Miso Expire?

Hope, that the information we have provided on “Can miso go bad?” is useful for you. If you store the miso properly, then you can use it for very long years. If you keep the packs in a tightly sealed container in the fridge, there are fewer chances of miso going bad.

Still, if you have any doubts you can comment to us in the comment section below. Stay connected to more interesting articles and bookmark our site to get updates about new articles.

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