The mixer (2) has a mixer housing (3) which has an outlet opening (7) for the components, a mixing element arranged in the mixer housing for mixing the components, and two separate inlet channels (5,6) through which the components are introduced in the area of the mixing elements. One of the inlet channels is configured at its end as a penetrating element (51) for opening a flow connection between a reservoir (8) or a chamber (92) and the inlet channels. The penetrating element has two inflow surfaces for the components. Both the surfaces are inclined relative to each other. An independent claim is included for a discharging device for discharging the two flowable components.
