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Basic chemical reactions that occur during coffee roasting

Basic chemical reactions that occur during coffee roasting

Many thermal and chemical reactions take place during baking: decarbonation, dehydration of quinic acid, fragmentation, isomerization, polymerization, and complex sugar reactions (caramelization). The main thermally reactive components are monosaccharides and sucrose, chlorogenic acid, displaced amino acids, and trigonelline amide. Both aravinone and calactose in polysaccharides are transferred, and basic sulfurization contains hydroxyamino acids.

2014-08-20
The relationship between the ratio of Italian espresso powder to water and flavor

The relationship between the ratio of Italian espresso powder to water and flavor

Making espresso with different powder-to-water ratios around the world is very simple, but it needs to control the proportion and balance of elements in order to pursue the best taste and perfect taste. However, mastering these proportions takes a long time to explore and connect, and the most important thing is

2023-04-15
Introduction to the superior material selection of hario v60 filter cup in hand-brewing coffee course

Introduction to the superior material selection of hario v60 filter cup in hand-brewing coffee course

Coffee filter cup V60 caters to many variables in coffee making, mainly in the design of these three points: 1, the cone of 60 degree angle: this prolongs the time for the water to flow through the coffee powder to the center. 2. A large filter hole: this allows us to control the flavor of coffee by changing the flow rate of water. 3. Spiral pattern: this allows air to escape upward from all sides to the maximum limit.

2016-10-19
How to survive a coffee shop with a high knockout rate

How to survive a coffee shop with a high knockout rate

The old practice said that the knockout rate of the coffee industry is really high. I often see, see and go through a lot of famous stores, new stores and stores because of many factors at the beginning of the coffee industry. some stores start business very well, very long before the emergence of new buyers, there are also new stores that have been closed for months, and some stores have been open for a long time.

2014-11-03
Summary on the Teaching of Fine Coffee hand-made Coffee

Summary on the Teaching of Fine Coffee hand-made Coffee

With the development of the boutique roasting industry, although hand-brewed coffee is very common, it is actually very complex and difficult. If you want to make a good cup of coffee, you must go through repeated practice. In the second week of coffee professional class teaching at Brista Coffee West Point College, boutique coffee extraction and tasting are the main contents of the course. Select high-standard coffee utensils to complete the actual operation.

2014-09-25
The summary of hand-brewing coffee teaching must go through repeated practice.

The summary of hand-brewing coffee teaching must go through repeated practice.

With the development of the boutique roasting industry, although hand-brewed coffee is very common, it is actually very complex and difficult. If you want to make a good cup of coffee, you must go through repeated practice. In the second week of coffee professional class teaching at Brista Coffee West Point College, boutique coffee extraction and tasting are the main contents of the course. Select high-standard coffee utensils to complete the actual operation.

2015-08-31
Calculation of the ratio of Gold Powder to Water in Coffee extraction

Calculation of the ratio of Gold Powder to Water in Coffee extraction

In the study of cup measurement or extraction of freshly baked coffee, barista flexibly changes different powder-to-water ratio and baking forms according to different coffee bean characteristics, mainly in order to restore or preserve the original natural flavor and characteristics of coffee. In the manual extraction skill teaching class, artificial preferred quality products, coupled with the quality of fresh baking, promote coffee.

2014-07-01
Calculation of the ratio of Gold Powder to Water in Coffee extraction

Calculation of the ratio of Gold Powder to Water in Coffee extraction

In the study of cup testing or extraction of freshly baked coffee, barista flexibly changes different powder-to-water ratio and baking forms according to different coffee bean characteristics, mainly in order to restore or preserve the original natural flavor and characteristics of coffee. In the manual extraction skill teaching class, manual preferred quality products, coupled with the quality of fresh baking, promote the coffee class.

2014-09-25
Calculation of the ratio of Gold Powder to Water in Coffee extraction

Calculation of the ratio of Gold Powder to Water in Coffee extraction

In the study of cup testing or extraction of freshly baked coffee, barista flexibly changes different powder-to-water ratio and baking forms according to different coffee bean characteristics, mainly in order to restore or preserve the original natural flavor and characteristics of coffee. In the manual extraction skill teaching class, manual preferred quality products, coupled with the quality of fresh baking, promote the coffee class.

2015-08-31
Law of Coffee extraction calculation of the ratio of Gold Powder to Water in Coffee extraction

Law of Coffee extraction calculation of the ratio of Gold Powder to Water in Coffee extraction

In the study of cup testing or extraction of freshly baked coffee, barista flexibly changes different powder-to-water ratio and baking forms according to different coffee bean characteristics, mainly in order to restore or preserve the original natural flavor and characteristics of coffee. In the manual extraction skill teaching class, manual preferred quality products, coupled with the quality of fresh baking, promote the coffee class.

2015-11-05
HARIO glass coffee filter cup V60

HARIO glass coffee filter cup V60

The fever of a V60-V60 caters to many variables in coffee making, mainly in the design of these three points: 1, a 60-degree angle cone: this prolongs the time for the water to flow through the coffee powder to the center. 2. A large filter hole: this allows us to control the flavor of coffee by changing the flow rate of water. 3. Spiral pattern: this allows air to escape upward from all around.

2016-04-20
Calculation of extraction rate of Coffee and the ratio Rule of Gold Powder to Water

Calculation of extraction rate of Coffee and the ratio Rule of Gold Powder to Water

Coffee has been recognized as a necessity of human life. It is no longer a luxury, nor does it represent indulgence, it is the crystallization of human painstaking efforts and abilities. William H. Yukos, everything about Coffee (1922) We are preparing for a stressful day in Cerf, North Carolina, on November 23, 2010. We stood there bleary-eyed, sparse

2015-11-05
How does the sour and bitter in coffee come from?

How does the sour and bitter in coffee come from?

Many thermal and chemical reactions take place during baking: decarbonation, dehydration of quinic acid, subdivision, isomerization, polymerization, and complex sugar reactions (caramelization).

2014-08-25
Guidelines for brewing golden cups of coffee

Guidelines for brewing golden cups of coffee

What is the best? what is the appropriate ratio of sour to bitter taste? all these need to be adjusted according to individual tastes. If you cook them for others, you should choose beans according to the preferences of coffee drinkers, change the hot water temperature, extract time and grinding degree, and find the best value. The taste of coffee roasted from light to medium is sour and sweet with low molecular weight and medium molecular weight.

2016-06-30
Cafes have sprung up all over China. Chinese people like to drink milk coffee and are disgusted with the soil.

Cafes have sprung up all over China. Chinese people like to drink milk coffee and are disgusted with the soil.

Industry insiders say that China's coffee consumption is growing at an annual rate of 15%, while the global average rate is 2%, so China is the fastest growing coffee market in the world.

2015-11-27
The basic Chemical reaction of Coffee Baking process

The basic Chemical reaction of Coffee Baking process

Original: Basic Chemical Reactions Occurring in the Roasting Process by Carl Staub sourced from the SCAA Roast Color Classification System developed by Agtron-SCAA in 1995 Many thermal and chemical reactions occur during the roasting proces

2015-01-27
Last year's poor performance, why did Nestl é pour out the coffee?

Last year's poor performance, why did Nestl é pour out the coffee?

In the 1980s, Maxwell and Nestle, two major instant coffee brands, were almost the forerunners of Chinese mainland coffee enlightenment education. But the coffee market is no longer just owned by Nestl é and Maxwell. Under pressure from many coffee products to carve up the market, Nestl é destroyed nearly 400 tons of unexpired instant coffee in February. The production capacity is ahead of the consumption capacity, and Nestle dissolves coffee.

2015-04-20
What is the reason for the slow flow of espresso? How to improve the slow flow rate of coffee liquid?

What is the reason for the slow flow of espresso? How to improve the slow flow rate of coffee liquid?

What is the flow rate of coffee? The flow rate of coffee refers to the dirty speed in the process of making espresso. The flow rate is too fast or too slow, which has a great impact on the taste of coffee. The reason that affects the flow rate of coffee is that the gap between coffee powder particles is too large or too small, which will affect the flow rate of coffee. Second, what is the reason for the slow flow of espresso? 1

2015-11-30
Cafes have sprung up all over China. Chinese people like to drink milk coffee and are disgusted with the soil.

Cafes have sprung up all over China. Chinese people like to drink milk coffee and are disgusted with the soil.

Core tip: industry insiders say that China's coffee consumption is growing at an annual rate of 15%, while the global average rate is 2%, so China is the fastest growing coffee market in the world.

2015-11-24
The thinking mode of extraction uniform extraction of fine coffee

The thinking mode of extraction uniform extraction of fine coffee

We talked about some of the connections between taste and data in general. The core idea is the relationship between alcohol thickness and TDS concentration, and the relationship between sour, bittersweet and extraction rate. If we describe the goal in the first chapter, then the goal we want to achieve is mainly the following two points: 1. A reasonable extraction rate of 18-22% was obtained. Because it can achieve bitterness.

2014-10-14
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