Beverage preparation machine and method of operating a beverage preparation machine

Abstract

The invention relates to a beverage preparation machine (1) for preparing beverages, operable in several operating modes and comprising a liquid container (3); a beverage preparation device (10) for preparing a beverage using a liquid; at least one stream A channel (12) connected to said liquid container (3) and beverage preparation device (10); accommodating device (4) for accommodating a liquid filter (5) at a predetermined filter position; sensor (6) for A detection liquid filter (5); and a control device (25) controlling supply of liquid from the liquid container (3) to the flow path (12). The control device (25) is designed to activate the supply of liquid to said at least one flow path (12) according to the signal of the sensor (6). In at least one mode of operation, the liquid supply can be activated regardless of whether the liquid filter (5) is placed in the predetermined filter position, and in at least another mode of operation, when the liquid filter (5) is placed in the predetermined filter position , the fluid supply cannot be activated.

Description

technical field [0001] The present invention relates to a beverage preparation machine for preparing beverages and a method of operating a beverage preparation machine. Background technique [0002] Beverage preparation machines are known which are capable of preparing and serving beverages using liquids. In this case, depending on the type of beverage, in order to prepare the beverage, it is possible to provide for the interaction of a part of the liquid (for example water) and a predetermined amount of flavoring substance (for example coffee, tea, etc.) for a specific period of time so that the corresponding flavoring substance or A part of the substance, such as the flavoring contained in said substance, is mixed together with or dissolved in a liquid, so that in this way a drink for consumption is formed. This type of preparation is usually used when the flavoring substance can be stored for a long period of time, but the beverage prepared from the liquid and the flavor...

AI Technical Summary

Problems solved by technology

This also has disadvantages: after a certain period of time, a used liquid filter preferably has to be replaced by an unused filter, specifically because the function of the liquid filter deteriorates during use and over time Its filtering effect is also compromised, so that there may eventually be a complete loss of filtering effect

This may have the effect that after the end of the operating mode for descaling the individual flow paths and / or the operating mode for cleaning the individual flow paths, during further operation of the beverage preparation machine, the liquid filter No longer able to provide the desired filtration, resulting in further calcification and / or contamination of individual flow paths without the user realizing it

Additional problems may exist if the liquid filter placed at the intended filter location is used for a long time before the operating mode for descaling the respective flow path and / or the operating mode for cleaning the respective flow path is activated , such that large amounts of scale and / or large amounts of contaminants may collect in the liquid filter

In this case, when the descaling liquid and / or cleaning liquid passes through the liquid filter, there may be such an effect that a large amount of calcified substances or contaminants break away from the liquid filter and are transported into the various flow paths, resulting in , calcified material and / or contaminants settle into the flow path and may optionally block the flow path

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