Dry and bittering flavors, usually in the aftertasteAftertaste refers to lingering residual sensations in the mouth after coffee has swallowed. It might be distinguished from "finish" which is the final sensations of the coffee while..., caused by alkaline substances,: A taste sensation characterized by a dryness and related bittering flavors, sometimes at the posterior of the tongue, usually sensed in the aftertaste. It is not always a wholly a bad thing, in moderate intensities