Method for making cold coffee and coffee maker using method

Abstract

The invention provides a method for making cold coffee and a coffee maker using the method. The method comprises the steps that water with the temperature within the range from 0 DEG C to 25 DEG C issupplied through an electric pump, and the water makes contact with coffee powder in the pressure intensity range from 1.5 bar to 20 bar to extract coffee, so that drinkable cold coffee liquid is obtained. According to the method, the coffee is extracted by using the high-pressure cold water, compared with the existing methods that iced drops are used and coffee is heated and then cooled by addingice, time is saved, the concentration of the coffee is increased, and the taste of the cold coffee is improved. Through the method, an electric-heating pressure coffee maker in the prior art can be improved, the electric-heating pressure coffee maker is made to have the functions of making hot coffee and cold coffee, and more convenience is brought to home application.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a method for making cold coffee and a coffee machine using the method. Background technique [0002] Iced coffee is soaked and moistened by low temperature, and the taste is fragrant, smooth, not sour, and not hurting the stomach, so it is loved by many users. The working process of the electric pressure coffee machine in the prior art is provided by steam or an electric pump, and the hot water at 80°C-100°C is delivered to the extraction chamber to extract coffee, which lacks the function of making cold coffee. And the iced coffee method of making at present and utensil thereof are varied, but all there is certain deficiency, for example adopt the method for ice drop to make a cup of iced coffee and need quite a long time, and adopt the method for hot coffee to add ice cooling and can dilute concentration again , affect the taste. Such as Chinese patent, application number:...

AI Technical Summary

Problems solved by technology

From the above plan, it can be seen that the method of making coffee is mainly to obtain hot and cold coffee beverages through circular extraction under normal pressure. Since circular brewing may extract bad coffee impurities together, it has not yet been generally recognized by the market. In addition, Using ice water to extract coffee under normal pressure will take a long time to extract the coffee essence, so there is a need for further improvement

For example, Chinese patent application number: 200880121618.6 also discloses a method and electrical appliance for making iced coffee. The scheme mainly adopts the brewing pressure in the range of ambient pressure to 1.5 bar, and the extraction time is shorter than 60 seconds. By using water with a temperature range of 35°C to 55°C to extract coffee; and supplying a certain amount of ice to the beverage obtained from the extraction process, the solution can also make hot and cold coffee, but there are still dilute concentrations and poor taste Factually flawed and expensive to implement, necessitating improvement

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