Usually, when you pick up acorns, you have to dry them and peel them, so it takes a lot of maintenance, but you don't need to do that. If you pick up acorns and just dry them, the bugs will eat them all, but if you soak them in water, the bugs won't eat them and the astringent taste will come out. You don't even need to peel it. Just take it to the mill and it will grind it for you.