Method for preparing a fresh brewed cold coffee beverage and coffee machine for conducting such method
OwnerRudi Truninger, Steven Eckenhauseninventors
Life of this patent
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Abstract
An energy-saving method for preparing a fresh brewed cold coffee beverage comprises the steps of: a. filling a brewing means with a predetermined quantity of coffee powder; b. brewing a hot coffee beverage by pushing hot water and/or hot steam through said predetermined quantity of coffee powder in said brewing means; c. cooling down said hot coffee beverage by exclusively bringing it in thermal contact with a stream of cold water; and d. dispensing said cooled-down coffee beverage at a coffee outlet.
Claims26
A method for preparing a fresh brewed cold coffee beverage having a target temperature, comprising the steps of:
- a. filling a brewing means with a predetermined quantity of coffee powder;
- b. brewing a coffee beverage having a temperature in excess of the target temperature by pushing a first stream of water and/or steam having a temperature in excess of the target temperature through said predetermined quantity of coffee powder in said brewing means;
- c. reducing a temperature of said coffee beverage to a temperature at or above said target temperature by bringing a first stream of said coffee beverage having a temperature in excess of the target temperature in thermal contact with a first stream of water having a temperature sufficiently below said target temperature such that a heat exchange between said first stream of coffee beverage and said first stream of water reduces the temperature of said first stream of coffee beverage to said temperature at or above said target temperature, said first stream of coffee beverage and said first stream of water running through at least one heat exchanger;
- and
- d. dispensing a fresh brewed coffee beverage at said temperature at or above said target temperature at a coffee outlet.
Coffee machine for preparing a fresh brewed coffee beverage having a target temperature, said coffee machining comprising:
- a brewing means for brewing a coffee beverage with an inlet for a first stream of water and/or steam having a temperature in excess of a target temperature and an outlet for the fresh brewed coffee beverage,
- wherein the brewing means is filed with a predetermined quantity of coffee power and a coffee beverage is brewed to have a temperature in excess of the target temperature by pushing the first stream of water and/or steam having a temperature in excess of target temperature through the predetermined quantity of coffee power in the brewing means;
- at least one heat exchanger having a primary side and a secondary side, wherein the primary side is inserted into an outlet piping means leading from the outlet of said brewing means to a coffee outlet, and the secondary side of the at least one heat exchanger is connected with an inlet for a first stream of water having a temperature sufficiently below said target temperature,
- wherein the temperature of the coffee beverage is reduce to a temperature at or above said target temperature by bringing from said brewing means a first stream of said coffee beverage having a temperature in excess of the target temperature and putting said first stream of said coffee beverage in thermal contact with the first stream of water having a temperature sufficiently below said target temperature such that a heat exchange between said first stream of said coffee beverage and said first stream of water reduces the temperature of said first stream of said coffee beverage to said temperature at or above said target temperature, said first stream of said coffee beverage and said first stream of water running through the at least one heat exchanger;
- and
- the coffee outlet connected to the outlet of said brewing means by said outlet piping means,
- wherein the fresh brewed coffee beverage is dispensed out of the coffee outlet at said temperature at or above said target temperature.
Dependencies are inferred from the claim text.