I have some store bought Cold Mountain brand Koji rice. On the container it says it keeps in the fridge for "6-12 months". I've had it for about 8 months, but can detect no change from when I bought it by either sight (still white and chalky), touch (perfectly dry), or smell (not sour, a little sweet).

That said, this is a fungus we're dealing with, so I want to be sure I can still use it.

How can I tell if Koji rice is still good to use?

  • Did you have a look at How long can I store a food in the pantry, refrigerator, or freezer? – Halhex Jun 26 '19 at 11:57
  • I think you've answered your own question. it's your kitchen, your body, your health, and your confidence. if you've lost confidence in an ingredient, toss it and buy new. – jim Jun 26 '19 at 13:36
  • @jim - food safety isn't determined by my confidence and my senses are fallible. I'm not too familiar with koji, so I'm looking for a halfway objective test to decide whether I should be confident in using it. – Alex Reinking Jun 26 '19 at 21:23
  • @Halhex - I just did and neither of the linked sites (StillTasty and Food Keeper) or the answer itself answers this question. – Alex Reinking Jun 26 '19 at 21:26
  • Update: I used it anyway and I am not dead. That doesn't mean it's always safe, but here's one data point :P – Alex Reinking Sep 6 '19 at 21:06

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