Patent ID: 8516948

Claim:
A beverage formation device, comprising: a brew chamber for receiving a beverage cartridge and having a lid that is movable between open and closed positions to open and close the brew chamber, the brew chamber adapted to substantially enclose a beverage cartridge with the lid in a closed position; a reservoir for holding a beverage precursor liquid and having a lid that is movable to open and close an access opening through which precursor liquid is provided into the reservoir, the reservoir lid being adapted to pneumatically seal the reservoir at the access opening when the reservoir lid is in a closed position, wherein the reservoir lid is movable to the closed position by a user moving the reservoir lid by hand, and wherein the reservoir is constructed and arranged to be pneumatically pressurized to force the precursor liquid from the reservoir to the brew chamber; a heater for heating the precursor liquid that is provided to the brew chamber; and a controller that includes a sensor to detect that the reservoir lid is in the closed position, the controller arranged to control pneumatic pressurization of the reservoir such that pneumatic pressurization of the reservoir is enabled after the reservoir lid is detected to be in the closed position.