I am cooking beans Vigna mungo , after soaking beans in water overnight.

I realized that when i cooked them in morning for 20 minutes in pressure cook, there are very few beans are still as hard as uncooked soaked beans, why these few exceptional beans are not softened ?

  • How are you preparing your beans before you cook them?
    – myklbykl
    Apr 13, 2020 at 17:25
  • step1: soak over night step2: boil in pressure cooker with salt for 20 min
    – murmansk
    Apr 13, 2020 at 19:09
  • it is interesting that there is variety in how the beans act.
    – Willk
    Apr 14, 2020 at 2:59

1 Answer 1


Older beans, or beans not stored properly may remain hard. Also, even among fresher beans they won't always soften evenly. Some beans may take 15 hours or longer.

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