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Some things about Coffee extraction Summary of incomplete extraction of roasted coffee beans

Some things about Coffee extraction Summary of incomplete extraction of roasted coffee beans

The first coffee will not melt completely when thrown into the water. The maximum extraction rate of roasted coffee beans is 30% (substances that can be dissolved in water divided by the total weight of coffee). This seems to be nonsense: 1. Whether it's French pressure, Philharmonic pressure, all kinds of pressure, or espresso. The range of the best extraction rate is 18% Mui 21%. Insufficient extraction (less than 18%) indicates that the flavor of coffee is not fully soluble.

2016-01-08
What is insufficient extraction and what is over-extraction of hand-made coffee?

What is insufficient extraction and what is over-extraction of hand-made coffee?

Then the factors that affect the extraction quality are roughly as follows: the size of the grinding powder, the amount of powder, the water temperature (the first two are a whole powder heap density), the convection (or pressure) of water, the whole time of extraction, and the ratio of coffee powder to water. What is insufficient extraction and what is excessive extraction? To make it easier to understand, let's give a magnification.

2016-04-20
How to extract a good cup of coffee by the way of standard extraction and standard extraction

How to extract a good cup of coffee by the way of standard extraction and standard extraction

After the correct picking, making and baking, we came to the last two gates of import, grinding and extraction.

2016-04-13
Anatomy and analysis of gold cup extraction theoretical method of gold cup extraction Analysis of knowledge points of gold cup extraction in pressure pot

Anatomy and analysis of gold cup extraction theoretical method of gold cup extraction Analysis of knowledge points of gold cup extraction in pressure pot

What is the law of gold cup extraction; how to adjust the extraction rate and coffee concentration; the questions and analyses that baristas often misunderstand. Today, Chongqing Beresta Coffee training School is here to discuss with friends about the gold cup extraction of coffee.

2016-01-15
Analyzing the Best extraction method of Coffee and talking about the problems often misunderstood

Analyzing the Best extraction method of Coffee and talking about the problems often misunderstood

What is the law of gold cup extraction; how to adjust the extraction rate and coffee concentration; questions often misunderstood by baristas. In order to understand gold cup extraction, we must first understand the concept of extraction rate and concentration. Extraction rate: the weight of dissolved coffee ingredients as a percentage of the total weight of coffee powder used. For example, when we use 18 grams of coffee powder to brew coffee, there are actually only 2.7-4.3 grams of coffee.

2015-07-29
Coffee extraction Theory-Golden Cup Criterion Professional Coffee knowledge

Coffee extraction Theory-Golden Cup Criterion Professional Coffee knowledge

The taste and extraction methods of coffee are very diverse. The European Fine Coffee Association once put forward the concept of Gold cup, that is, the golden cup criterion. A certain extraction rate and coffee concentration determine the taste of coffee. But what is the extraction rate, and what is its effect on the taste of coffee?. Let's do some knowledge sharing what is the Golden Cup Criterion (Gold Cup Standard) SCAA Golden Cup

2016-05-10
Al's Rule extracted by Espresso (Ayer's Rule: sweet Point Formula)

Al's Rule extracted by Espresso (Ayer's Rule: sweet Point Formula)

The Al's Rule of Espresso extraction (Al rule: sweet point formula) each increase in the extraction amount of 5cc, the extraction time should be subtracted from 1sec. On the contrary, add 1sec.

2014-07-10
Analysis of the Best extraction method of Coffee and the problems often misunderstood and their Solutions

Analysis of the Best extraction method of Coffee and the problems often misunderstood and their Solutions

What is the law of gold cup extraction; how to adjust the extraction rate and coffee concentration; questions often misunderstood by baristas. In order to understand gold cup extraction, we must first understand the concept of extraction rate and concentration. Extraction rate: the weight of dissolved coffee ingredients as a percentage of the total weight of coffee powder used. For example, when we use 18 grams of coffee powder to brew coffee, there are actually only 2.7-4.3 grams of coffee.

2015-12-26
Extraction knowledge of Espresso Elite rule: sweet spot formula

Extraction knowledge of Espresso Elite rule: sweet spot formula

Al Critzer's understanding of Espresso extraction has become the most common concept of Espresso in Europe and the United States. The translation is as follows: starting with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The extraction quantity and extraction time are mutually related.

2015-03-05
About the degree of grinding: the degree of grinding affects the extraction rate and boiling time.

About the degree of grinding: the degree of grinding affects the extraction rate and boiling time.

First, the relationship between the grinding thickness and the extraction time. The finer the coffee is ground, the denser the powder layer is, the more coffee powder particles are in contact with hot water, the extraction resistance increases, it is easier to prolong the extraction time, and the extraction rate is increased, so it is easy to over-extract. On the contrary, the thicker the touch is, the larger the gap in the powder layer is, the less coffee powder is in contact with water, the weaker the extraction resistance, the lower the extraction time and the lower the extraction time.

2015-11-10
There are two reasons for the excessive extraction of espresso.

There are two reasons for the excessive extraction of espresso.

All modern coffee extraction is the two core processes of soaking and filtration, which belongs to the category of physics, and there is basically no chemical change in the process. The differences in the thickness of coffee powder, the length of soaking time, the method of separation and filtration, and so on, have created a wealth of coffee brewing utensils and techniques. Although the core process of coffee extraction is the same, according to the pressure used in coffee extraction and the extraction

2015-11-07
Do you know how to extract coffee? The core process of extraction principle

Do you know how to extract coffee? The core process of extraction principle

Many of us may choose instant coffee or go to a coffee shop for convenience, but there are also some coffee lovers who like to drink their own ground coffee. I wonder if you like to grind and extract your own coffee? Do you know the principle of extraction? The core process of extraction principle: 1. Grind coffee beans to increase the surface area of coffee in contact with water; 2. Coffee

2015-10-22
SCAA gold cup theory the ratio of coffee powder to water

SCAA gold cup theory the ratio of coffee powder to water

The proportion of SCAA refined cup coffee defined by the Gold Cup Fine Coffee Association of the United States and the European Fine Coffee Association of scae, the extraction rate of coffee must be about 20%, while the TDS (concentration ratio) is about 1.1% to 1.3%. For Drip Filter dripping and brewing, how to extract the best coffee flavor, the controlling factors are nothing more than the changes of the extract of coffee powder and the concentration in a cup of coffee.

2015-03-13
The temperature of brewing coffee should be inversely proportional to the roasting degree. Hand flush, siphon, filter pot and smart filter cup

The temperature of brewing coffee should be inversely proportional to the roasting degree. Hand flush, siphon, filter pot and smart filter cup

Brewing coffee water temperature should be inversely proportional to the roasting degree of various brewing methods extraction water temperature is not consistent, American electric titration pot due to different brands, mostly controlled at 92℃96℃ constant temperature extraction range, espresso machine can be used according to the store roasting degree, water temperature is set at 88℃93℃ range, basically, the deeper the roasting extraction water temperature is lower, about 88℃, the shallower the roasting water temperature is higher, probably

2016-07-01
Incomplete summary of extraction

Incomplete summary of extraction

The first coffee will not melt completely when thrown into the water. The maximum extraction rate of roasted coffee beans is 30% (substances that can be dissolved in water divided by the total weight of coffee). This seems to be nonsense: 1. Whether it's French pressure, Philharmonic pressure, all kinds of pressure, or espresso. The range of the best extraction rate is 18% Mui 21%. Insufficient extraction (less than 18%) indicates that the flavor of coffee is not fully soluble.

2014-09-13
Al's Rule extracted from Coffee by Espresso

Al's Rule extracted from Coffee by Espresso

Al Critzer's understanding of Espresso extraction has become the most common concept of Espresso in Europe and the United States. The translation is as follows: starting with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The extraction quantity and extraction time are mutually related.

2014-10-21
Al's Rule extracted by Espresso (Al-Fe rule: sweet spot formula)

Al's Rule extracted by Espresso (Al-Fe rule: sweet spot formula)

Al Critzer's understanding of Espresso extraction has become the most common concept of Espresso in Europe and the United States. The translation is as follows: starting with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The extraction quantity and extraction time are mutually related.

2014-07-23
Al's Rule extracted from Italian espresso by Espresso

Al's Rule extracted from Italian espresso by Espresso

Al Critzer's understanding of Espresso extraction has become the most common concept of Espresso in Europe and the United States. The translation is as follows: starting with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The extraction quantity and extraction time are mutually related.

2014-10-09
Al's Rule of Espresso extraction of espresso

Al's Rule of Espresso extraction of espresso

Al Critzer's understanding of Espresso extraction has become the most common concept of Espresso in Europe and the United States. The translation is as follows: starting with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The extraction quantity and extraction time are mutually related.

2014-12-31
Espresso Al's Rule

Espresso Al's Rule

Al Critzer's understanding of Espresso extraction has now become the most common Espresso concept in Europe and America. Take the result of 30cc/ 30sec to get a perfect cup of Espresso as the starting point. These two values depend on the beans, of course, and differences in baking methods, baking degrees, and recipe proportions naturally lead to changes in the reference point. Extraction quantity and extraction time mutually interact

2014-09-30
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