Why? Because you can! And pickle, and jam, or otherwise celebrate the resurgence of the domestic arts our forebears held so dear. Put on your best apron and step into our kitchen, won't you?
This is the best way to make a clean, adhesive acorn flour. Yes, there are easier methods to get flour, but this process yields the finest product that will store for years in a cool place. Any acorn works with this technique.