Does Pressure cook work for hard to soften soybeans? I do not have a pressure cook in my house. But the soybean I bought remains really hard after soaking for 24 hours and boiled for 1 hour. I saw someone  saying that some old beans will never soften no matter how long I cook. Is this really true? 

One of the poster mentioned 10 min cooking in a pressure cook should soften the beans. This appeals to common sense. But I am still concerned about those people saying "will never soften no matter what". 

So, I am asking if any one has tried boiling which did not work but succeeded to soften the beans with pressure cook? I have no need for a pressure cook. And I don't want to buy a pressure cook if it too can not soften stubborn hard soybeans.
Tried it.  Failed utterly.  If the beans won't soften with overnight soaking and an hour of cooking, you should forget about them.