you never eat mixed beans? that is interesting.

different beans have different vits and nutrition, which am sure you know this. so by mixing them, you would get more vits and more nutrition, and they are delish to be mixed in some cooking :D

dry goods are good for years btw. but storing like is for meal prepping, which means, when you need them, you dont have to search the ingredients one by one, just drop them into a pot, add additions of your preference, and you are good to go