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Umeboshi Storage/Shelf Life?

k
kurl Mar 18, 2011 04:19 PM

Hi all-

Does anyone know how long umeboshi plums last unrefrigerated? We picked some up in Kyoto last week in a plastic pint container and shipped them home - want to make sure they're safe to eat after a week of being unrefrigerated...

Thanks in advance!

  1. j
    joonjoon Mar 18, 2011 04:58 PM

    They basically last forever - Umeboshi was invented specifically to last without refrigeration.

    1. l
      la2tokyo Mar 18, 2011 05:08 PM

      My grandma makes umeboshi from a tree in her backyard and stores them in a dated jar under a floorboard in the kitchen. The last time I was there I was eating umeboshi that were four years old. They never get refrigerated. They could last longer than that if they didn't get eaten.

      1. w
        wildgift May 2, 2011 09:39 PM

        My mom makes it and we keep in the refrigerator. I just got some from 2008, three years ago. I recall we'd be eating them going back four or five years sometimes. The flavor gets better with age - and yours is probably already a few years old. It's also kept unrefrigerated in a jar on the table, as a condiment.

        I just read that the seed has chemicals that are transformed into an aromatic toxin that helps to preserve them. If you put umeboshi into a rice ball, it'll last for a day unrefrigerated. Normally, unrefrigerated warm rice spoils in a day, so it's pretty amazing that just putting this pickle inside will preserve it.

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