Coffee kombucha has a strong coffee smell but a changed, lessened coffee flavor. Coffee Kombucha seems a little like a sweet/sour candy. It's sweet and regular coffee like while at the same time being tart and a little fermented.
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.