I don't drink coffee, but my dad does and he grinds his own but uses one of things I use for spice grinding. He drinks coffee in the morning only so a cup or two and when my brother is there they might go through 1 pot. Is there a good burr grinder that just does a small amount of beans at a time? He is not willing to store his beans outside the freezer so a storage bin on top is not necessary and only grinds what he wants to use.