Abstract: A home soda machine includes a cylinder of gas suitable for carbonation, an attachment mechanism to attach a bottle of water, a valve opening mechanism to open a gas release valve on the gas cylinder and introduce the gas to the bottle of water, a gas release sensor to sense at least events indicating the opening and closing of the gas release valve, and an indirect gas meter to at least determine an amount of the gas released from the cylinder based at least on a cumulative length of time the gas release valve was open as per data received from the gas release sensor.

Abstract: A home soda machine includes a cylinder of gas suitable for carbonation, an attachment mechanism to attach a bottle of water, a valve opening mechanism to open a gas release valve on the gas cylinder and introduce the gas to the bottle of water, a gas release sensor to sense at least events indicating the opening and closing of the gas release valve, and an indirect gas meter to at least determine an amount of the gas released from the cylinder based at least on a cumulative length of time the gas release valve was open as per data received from the gas release sensor.

Abstract: A device for carbonating a liquid (L) in a container (10) with a pressurized gas (G) comprises a receiving flask (20) for the container (10) and a filling head (30) which has means (31) for adding gas into said liquid in the container (10). The receiving flask (20) and the filling head (30) are movable in relation to each other between an insertion position (I) and a carbonating position (C). In the insertion position (I) the filling head (30) is spaced from the receiving flask (20). In the carbonating position, the receiving flask (20) and the filling head (30) are in contact with each other such as to form a substantially closed cavity (19). An interlocking connection directly connects the receiving flask (20) to the filling head (30).