Lower chamber vent for the lower chamber of a brewing machine

摘要

The coffee machine has an air vent opening in the lower chamber which is opened during the time that the coffee is being poured. This changes the air pressure in the lower chamber and allows the coffee to quickly and smoothly flow out of the chamber. A portion of the upper chamber gasket blocks a portion of the filter element and seals such portion of the filter element from coffee grounds so that they are not deposited on that portion of the filter element. The shielded portion does not, therefore, accumulate coffee grounds and ensures good ventilation for the lower chamber.