A machine for preparing a beverage, such as a beverage prepared from an ingredient selected from at least one of coffee and tea and chocolate and cocoa and milk and soup and baby food, comprising: - a body comprising a seat and a beverage processing line (1",1′′′) extending from a liquid inlet (1") to a beverage dispenser , the liquid inlet (1") being optionally connected to a source of liquid, e.g. water, such as a machine tank and/or an external liquid supply line, the liquid line (1",1′′′) extending optionally via a pump and/or a thermal conditioner such as a heater and/or a cooler; and - a service unit that is removably received in or on the seat and that comprises a foot part and a recipient part removably received in or on the foot part so as to be supported thereby, the foot part having a bottom face configured to rest on an external horizontal support surface when the service unit is removed from the seat , optionally the seat being delimited by a platform for supporting the service unit in or on the seat and/or for guiding the service unit into or onto the seat , the recipient part being configured to store: - un-used beverage ingredient and/or beverage liquid and/or cleaning fluid, to be supplied to the beverage processing line (1",1′′′); and/or - used beverage ingredient and/or waste beverage liquid and/or used cleaning fluid, collected from the beverage processing line (1",1′′′), characterised in that , when the recipient part is received in or on the foot part , the recipient part is movable relative to the foot part from a first stable position when the service unit rests on said external horizontal support surface to a second stable position when the service unit is received in or on the seat , and vice versa, the first and second stable positions being different. - a body comprising a seat and a beverage processing line (1",1′′′) extending from a liquid inlet (1") to a beverage dispenser , the liquid inlet (1") being optionally connected to a source of liquid, e.g. water, such as a machine tank and/or an external liquid supply line, the liquid line (1",1′′′) extending optionally via a pump and/or a thermal conditioner such as a heater and/or a cooler; and - a service unit that is removably received in or on the seat and that comprises a foot part and a recipient part removably received in or on the foot part so as to be supported thereby, the foot part having a bottom face configured to rest on an external horizontal support surface when the service unit is removed from the seat , optionally the seat being delimited by a platform for supporting the service unit in or on the seat and/or for guiding the service unit into or onto the seat , the recipient part being configured to store: - un-used beverage ingredient and/or beverage liquid and/or cleaning fluid, to be supplied to the beverage processing line (1",1′′′); and/or - used beverage ingredient and/or waste beverage liquid and/or used cleaning fluid, collected from the beverage processing line (1",1′′′), - un-used beverage ingredient and/or beverage liquid and/or cleaning fluid, to be supplied to the beverage processing line (1",1′′′); and/or - used beverage ingredient and/or waste beverage liquid and/or used cleaning fluid, collected from the beverage processing line (1",1′′′), characterised in that , when the recipient part is received in or on the foot part , the recipient part is movable relative to the foot part from a first stable position when the service unit rests on said external horizontal support surface to a second stable position when the service unit is received in or on the seat , and vice versa, the first and second stable positions being different. <EOS>