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How long does miso paste last?

Ethan N Jan 31, 2007 04:02 PM

Inspired by the miso paste post below, I rooted (sorry) around the fridge and found a tub that's been sitting there since last winter. Can I still use it? And while we're at it, what are your favorite quickie recipes? I add various veggies and seaweed and a little tofu.

  1. d
    Dunkelson Mar 4, 2014 02:05 PM

    I have the AKA Red Miso Paste in a plastic tub in the refrigerator. It's nine years old and still exactly like when I bought it. I hadn't noticed the tub in the back of my fridge for about a year and opened it, expecting it to be moldy or something. Nope. Then I moved twice. Threw away everything in the fridge each move except the miso because I wanted to see how long it would last. I try it about once every year. I just tried it today. Perfectly fine. Nine years old. Where does the time go? Pretty soon I'll be sending it off to college.

    1. Aabacus Nov 2, 2012 12:46 PM

      Had to wake up a long dead thread but...my shiro miso changed color (darker) is it still okay to use?

      2 Replies
      1. re: Aabacus
        ricepad Nov 4, 2012 12:24 PM


        1. re: Aabacus
          Bacardi1 Nov 4, 2012 02:13 PM

          A second to that "yes". Properly sealed & kept in the fridge, Miso is nearly invincible.

        2. The Professor Nov 26, 2008 07:45 PM

          I am still using miso that's at least 2 years old...and it's great. It almost tastes better now than when I bought it.
          Kept in the fridge, in packaging excluding air. A little goes a long way and I evidently bought too big a package for my needs..but in the end, no regrets.

          1. ipsedixit Nov 26, 2008 07:45 PM

            It will last longer than your fridge.

            1. Kitchen Queen Feb 1, 2007 08:01 AM

              I keep mine in the fridge - Maybe a year now and it's fine. Miso is already fermented but, keep in the fridge, sealed and it will last eons.

              1. amyleechen Jan 31, 2007 04:38 PM

                I was wondering this myself. I think I've had my container for years. I used some about 6 months ago and it was fine -- no one died. And I didn't notice any nuanced loss.

                << Months are just a drop in the bucket when it comes to the lifespan of miso. >>

                I like that -- very Zen. :-)

                1 Reply
                1. re: amyleechen
                  Ethan N Nov 26, 2008 07:41 PM

                  It's been almost two years--has anyone died yet?

                2. h
                  Humbucker Jan 31, 2007 04:07 PM

                  It should last for a very long time. Months are just a drop in the bucket when it comes to the lifespan of miso.

                  1. a
                    aelph Jan 31, 2007 04:07 PM

                    properly sealed
                    6 mo. to a year

                    tho' some preserve much, much longer

                    Andoh suggests in Washoku that shiro miso is best used within 6 months otherwise one faces degradation of nuances

                    I've kept shiro miso a year in the fridge no problemo

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