In terms of nutrition, both sweet soybean milk and salty soybean milk are very nutritious, but sweet soybean milk has more energy. There is not much difference. Which one to eat depends on one's taste!

Soymilk is all pulp. I don't know what you mean by solidification. In my opinion, there are two situations: first, it becomes tofu; Second, freeze into a solid. This is not ideal.

I think soybean milk is high in protein, so it's best not to leave it for more than 2 hours, otherwise it will go bad easily. I hope you are healthy!