Do all the beans get done at the same time in those mixed bean bags? I have always hesitated, wondering about that.
I have made soup using the mixed bean bags several times and have just used the recipe on the bag of the soup mix and adjusted it to my own tastes. Every time I have made it, the soup had turned out to be absolutely delicious.
I have never had a problem with some not done. I soak them overnight to be made into soup the next day.