Abstract: There is described an automatic coffee-making apparatus comprising, in a casing including coffee inlet, beverage percolation outlet and spent coffee discharge outlet means, a rotor having opposite cavities diametrically bored thereinto, and pistons slidably located in said cavities, said pistons being interconnected and forming in each respective cavity an outer space open on the rotor peripheral wall and an inner annular space of cross-sectional area less than that of the outer space, and duct means for phasedly and selectively supplying hot pressurized water in said annular spaces during percolation to discharge spent coffee.