JP2003164260A - Method for extracting and separating coffee with water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for extracting and separating coffee having good aroma and taste in a short time by using water at a normal temperature. <P>SOLUTION: Raw beans of coffee are roasted and then coarsely ground to provide coffee powder and the coffee powder is frozen and immersed in water at normal temperature to extract coffee and the extracted coffee is filtered to separate coffee. The freezing temperature of the coffee powder is preferably a temperature about 30-40°C lower than water at normal temperature. Coffee having good aroma and taste can be extracted by immersing coffee powder frozen at about -10 to -20°C in water kept at about 20°C for about 10-20 min. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for extracting and separating coffee from water using room temperature water.

[0002]

2. Description of the Related Art The conventional coffee extraction method is one in which green coffee beans are roasted and roughly ground (hereinafter referred to as coffee powder).
Is used as it is, and a small amount of water is poured into it to filter it, or hot water is poured to filter it.

[0003]

In the conventional method of using coffee powder as it is, and pouring water into it, and extracting it,
Since there is almost no temperature difference between coffee grounds and water, extraction takes a long time, usually about half a day, and is laborious. In the conventional method of extracting hot water by pouring hot water into coffee powder, the extraction speed is fast because the temperature difference between coffee powder and boiling water is usually about 60 ° C., but the aroma and taste of coffee change at high temperatures.

The present invention reduces the temperature of coffee grounds,
Pouring room temperature water, the speed is as fast as hot water,
Moreover, it is an object of the present invention to provide a method for extracting and separating coffee from water so that delicious coffee can be obtained without changing the aroma and taste of coffee.

[0005]

[Means for solving the problem] Roasting green coffee beans,
It is roughly ground into coffee powder, which is frozen, soaked in water at room temperature to extract coffee, and strained to separate coffee.

[0006] It is preferable to bring the frozen coffee grounds to a temperature which is about 30-40 ° C below normal temperature water.

Freeze the coffee grounds to -10 to -20 ° C,
It is preferable to take it out, immerse it in water at room temperature for about 10 to 20 minutes to extract coffee and strain it.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. First, green coffee beans are roasted by a usual method and ground to make coffee powder.

Next, the coffee grounds are frozen, soaked in water at room temperature to extract the coffee, and filtered to separate the coffee. Freezing coffee powder causes a temperature difference from normal temperature water, and even if it is immersed in normal temperature water, it can be extracted at the same speed as when it is immersed in hot water to extract coffee. You can get good coffee with no change in aroma and taste.

The freezing temperature of the coffee grounds is preferably about 30 to 40 ° C. lower than the temperature of water at room temperature. If there is not much difference in temperature, it takes time to brew coffee, and if the difference in temperature is too large, the aroma and taste change and delicious coffee cannot be obtained.

Water has a slight temperature difference depending on the season,
When coffee powder frozen at −10 ° C. was soaked in water at an average temperature of about 20 ° C. for about 20 minutes, coffee with a good aroma and a good taste could be extracted.

Since the water temperature is high in the summer, coffee powder is
Even if it is frozen in water at room temperature after being frozen at 10 ℃,
Delicious coffee is extracted in the quantile.

When the green coffee beans are roasted, frozen and then ground and poured with water, the coffee grounds are heated to a temperature of 1
Since the temperature rises by about 0 degrees, the temperature difference with water becomes small and extraction takes time.

[0014]

According to the method of extracting and separating coffee according to the present invention, when coffee ground beans are roasted and the ground coffee powder is frozen, the room temperature water has the same temperature difference between hot water and room temperature coffee powder. Since there is a difference in temperature, the coffee can be extracted in a short time using water at room temperature. And since the coffee powder does not change due to high heat, the extracted coffee has an aroma and taste.

Claims (3)

[Claims] 1. Raw coffee beans are roasted, roughly ground to obtain coffee powder, which is frozen, soaked in water at room temperature to extract coffee, and strained to separate coffee. Method for extracting and separating coffee from water. 2. Green coffee beans are roasted and coarsely ground into coffee powder, which is about 30-40 ° C. higher than room temperature water.
A method for extracting and separating coffee from water, which comprises freezing at a temperature lower than ℃, extracting it, immersing it in water at room temperature to extract coffee, and filtering to separate coffee. 3. Green coffee beans are roasted and roughly ground into coffee powder, which is frozen at -10 to -20 ° C., taken out and immersed in water at room temperature for about 10 to 20 minutes to obtain coffee. A method for extracting and separating coffee from water, which comprises extracting and filtering coffee to separate coffee.