Coffee machine

Abstract

To enhance an effect for keeping warm and prevent oxidation deterioration of coffee, serving delicious coffee, and to save energy, suppressing generation of carbon dioxide, a coffee machine 100 for spraying hot water over powder of coffee beans to extract coffee, in which a coffee machine body 10 includes a nitrogen gas generation unit 30 for generating nitrogen gas, and a nitrogen gas supplying part 31 for supplying the nitrogen gas generated by the nitrogen gas generation unit 30 into a pot 60, and the pot 60 included a pot body 61 made of heat insulating material, a cover part 62 for sealing up the pot body 61 and a heater 72 provided in at least one of the pot body 61 and the cover part 62, for heating at least the pot body 61.

Description

technical field [0001] The present invention relates to a coffee machine for extracting coffee while maintaining the quality and freshness of the extracted coffee. Background technique [0002] People have been trying their best to maintain the quality and freshness of the coffee they extract. In order to maintain the quality and freshness of coffee, the prerequisite is to have high-quality coffee beans, and the second most important thing is: (1) In order to prevent the coffee from being degraded by heat, heat only during roasting and extraction; (2) In order to prevent coffee from deteriorating Oxidation deterioration, cut off contact with air after extraction; (3) no longer heat, drink as soon as possible after extraction. [0003] When selling coffee in the store, in order to ensure the quality of the coffee, the coffee that has been extracted for more than 30 minutes will not be sold and will be disposed of. For example, if the store is open for 10 hours a day, and th...

AI Technical Summary

Problems solved by technology

However, in Patent Document 1, there is no description of heating the inert gas, so it is presumed that the inert gas at normal temperature is used.

That is, as described in Patent Document 1, the pot is filled with an inert gas at normal temperature, and the stored liquid is discharged using the pressure of the inert gas. Here, repeated filling of the inert gas at normal temperature will promote the temperature drop of the stored liquid.

Especially when the stored liquid is coffee, the frequent gas exchange mentioned above will cause the temperature to drop, and at the same time, the unique aroma of coffee will be released, making it impossible to provide delicious coffee

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