Of all the things Autor knows about cooking, that it's an art is not one of them. It's a science, and it is with that precise and exacting nature that he chops the ginger into fine, similarly sized pieces. He measures three and a half tablespoons into a bowl and presents them to Oswin--after snacking on a couple.
Re: White as driven snow
"Your ginger, m'lady," he says, with pomp.