HB wrote:In this case, I run the grinder for a couple seconds to clear the chamber of the old grinds after a setting change. You could be super miserly and not discard, but your first shot after a change will be a mixture of old and new, and the pour will drift ever so slightly on the second shot after the adjustment. Then again, if you're not super picky or you're serving a latte lover, it may not matter.