Coffee brewing machine

DETAILED DESCRIPTION The invention provides a coffee brewing machine for preparing, alternatively, espresso coffee by a method in which hot water is forced under pressure through a compressed cake of coffee powder, or normal coffee by a method in which hot water runs without pressure through a filter containing coffee powder.
The machine of the invention comprises a tank or container for cold fresh water and a heater for heating the cold water once it has pumped out of the tank or container.
A first brewer in the form of a brewing chamber is provided and adapted to receive the aforementioned cake of coffee powder, and a second brewer is provided and adapted to receive the aforementioned filter containing coffee powder.
The coffee brewing machine of the invention further comprises a support to which the aforementioned first and second brewers can be connected alternatively.
A water pump serves for feeding the cold fresh water from the tank or container to the heater and therefrom to the aforementioned support.
The heater is switchable to alternatively heat the cold fresh water, in a first mode of operation, to a first lower temperature or, in a second mode of operation, to a second higher temperature.
The water pump is switchable to alternatively feed the water, in a first mode of operation, with a first higher feed rate or, in a second mode of operation, with a second lower feed rate.
Further, a switch is provided for switching the heater and the water pump from the first mode of operation over to the second mode of operation and vice versa whereby the switch is automatically activated upon connecting the first brewer or the second brewer to the support such that the heater and the water pump are operating in the first mode of operation when the first brewer is connected to the support, i.
e.
when espresso coffee is to be prepared, and the heater and the water pump are operating in the second mode of operation when the second brewer is connected to the support, i.
e.
when normal coffee is to be prepared