Abstract: A device and method for preparing hot beverage while combining roasting the brewing in the same device. When non-roasted or semi roasted grinds or scrunched leaves are used, completion of the roasting is performed by the device to a desired level of roasting. Thereafter brewing is performed in a desired temperature and a controlled pressure. The grinds or scrunched leaves can be provided packed in a capsule.

Abstract: A system and a method for the production and provision of C02 gas are disclosed. A sealable chamber is equipped with heating means and when a CO2 carrier material, such as sodium bicarbonate is placed in it and heated to its decomposition temperature CO2 gas is released. The released gas is conveyed into liquid within a container and when the pressure of the gas in the container raises more and more CO2 gas is dissolved. The heating may be done by conduction mechanism, a microwave heating mechanism or by induction mechanism. The sodium bi-carbonate or any other material including carbon dioxide may be disposed in powder, solid, suspension, emulsion, solution or wet powder form. It may be disposed in thin envelope case.