Abstract: The present invention consists of a single-dose espresso maker for preparing infusions in general, to be disposed of after being used. It consists of two glass-shaped containers, one of which contains water to be heated and the other of which, equipped with a filtering bottom wall, contains the infusion product; the mutually opposite mouths of both said containers are coupled with each other by grafting, with the interposition of a water-sealing disk-shaped element of pre-established strength, which can be broken by the pressure developed by heating water; and of at least one perforated disk-shaped element. After heating the water containing element, the pressure of generated water vapor causes the breakage of said sealing disk, enabling water to flow through the filter-container containing the infusion product and hence the desired infusion to be produced and fed to a container associated with the espresso maker.

Abstract: The present invention relates to a coffee-brew percolator. The percolator comprises an outer vessel, a bottomless boiler slidably and removably arranged in the vessel, and one or more filters designed to confine in the vessel a space above the boiler for accommodating coffee powder. The boiler has one or more calibrated openings or holes through which steam or vapor can be discharged in use. The boiler is free to slightly move towards and away from the space containing coffee powder so that the latter is packed and amounts of water calibrated in accordance with the pressure level in the boiler are released from the bottom of the boiler towards the coffee powder in the space.