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Is drinking coffee good or bad? Evaluate the quality of coffee in detail

Is drinking coffee good or bad? Evaluate the quality of coffee in detail

Whether coffee is the next superfood or the next source of public health hazards depends on who you ask. If you look at the recent news or research, you will find that coffee can fight heart disease, reduce the incidence of breast, colon and multiple sclerosis and reduce Alzheimer's disease. A recent survey by National Health Graduate students and researchers at Yale University found that

2015-09-11
Why does coffee taste bitter and sour? Why does coffee taste different? Where is coffee?

Why does coffee taste bitter and sour? Why does coffee taste different? Where is coffee?

Coffee has always been controversial. Some people say: How to call coffee without bitterness? Some people say that good coffee has a pleasant bitterness (so-called acid). There are also many people who say that good coffee should not have bitter taste! Suffering is bad! Why is coffee bitter? Why is it called pleasant suffering? When it comes to coffee's bitter ingredients, perhaps most people's first reaction is caffeine! The caffeine.

2016-03-15
Why is coffee bitter? Sour? Good coffee should not be bitter! Suffering is not good!

Why is coffee bitter? Sour? Good coffee should not be bitter! Suffering is not good!

The bitterness of coffee has always been controversial. Some people say: how can it be called coffee if it is not bitter? Some people say that good coffee has a pleasant bitterness (so-called sour). There are many people say: good coffee should not have a bitter taste! Suffering is not good! And why is coffee bitter? Why is it called pleasant bitterness? When it comes to the bitter ingredients of coffee, perhaps most people's first reaction is caffeine! The caffeine.

2015-10-22
Coffee bean roasting theory

Coffee bean roasting theory

Grab a handful of coffee raw beans smell, there is always a pungent smell, very different from the impression of the charming smell of coffee. However, after roasting "fragrance" correctly, raw beans will emit the strongest aroma in the world.

2014-08-26
Coffee roasting principle

Coffee roasting principle

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2014-08-06
Extraction factor

Extraction factor

I was going to go directly into the implementation mode, but think about it or pull this article to the front first, so that you may have a general understanding of different brewing methods, and it will be easier to clarify the relationship and cause of formation of different flavors. ~ the extraction of coffee is nothing more than two things: the solubility, the longer the diffusion, the more dissolved molecules, the more complete the diffusion, of course, everyone.

2014-09-13
Coffee roasting principle Fine Coffee basic knowledge of Coffee

Coffee roasting principle Fine Coffee basic knowledge of Coffee

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2015-01-28
Roasting principle of coffee beans

Roasting principle of coffee beans

The small, high-altitude raw Arabica coffee beans are like a warehouse full of chemicals. At present, scientists have identified more than 2, 000 known ingredients, of which 70 to 850 are aromatic ingredients, which can be called the most fragrant in the human diet. There are only 150 kinds of vanilla used for seasoning in the catering industry, and the mellow composition of wine is far from it.

2014-08-15
Coffee Roasting Principles Fine coffee beans Roasting common sense

Coffee Roasting Principles Fine coffee beans Roasting common sense

To do a good job of baking, every production link can not be ignored, the selection of materials should be exquisite, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand how baking works, you must first understand heat conduction, convection, and radiation. Conduction is when heat is conducted from a heat source, causing the surrounding molecules to vibrate and emit heat, gradually moving from a high temperature to a low temperature. Conductivity of stainless steel

2015-05-12
Why do coffee beans turn brown after roasting? Why is there an aroma?

Why do coffee beans turn brown after roasting? Why is there an aroma?

Coffee beans are light green and turn brown when roasted. This baking characteristic brown mainly comes from the brown pigment produced by oligosaccharins, amino acids and chlorogenic acids. The so-called brown pigment does not refer to a color or ingredient, but a general term for the many ingredients that make coffee different colors. Raw beans gradually change color during baking because of the total amount of brown pigment

2016-08-24
Roasting principle of boutique coffee: heat conduction, convection and radiation

Roasting principle of boutique coffee: heat conduction, convection and radiation

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2014-11-14
What are the

What are the "chemical" ingredients in a cup of coffee?

The taste is delicious and fragrant. As can be seen from the advertising words of coffee, flavor is the soul of coffee. Recently, "Coffee Flavor Chemistry", co-written by Dr. Zeng Fankui of Lanzhou Institute of Chemical Physics of Chinese Academy of Sciences and Professor ou Shiyi of Food Department of Jinan University, was published by Jinan University Publishing House. This is the first academic monograph on coffee processing in China. Set

2015-09-09
Principle of coffee bean roasting: heat conduction, convection and radiation

Principle of coffee bean roasting: heat conduction, convection and radiation

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2015-05-27
Knowledge of heat conduction, convection and radiation in coffee roasting

Knowledge of heat conduction, convection and radiation in coffee roasting

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2015-02-11
Baking principle of coffee beans roasting of fine coffee beans

Baking principle of coffee beans roasting of fine coffee beans

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2015-03-25
Coffee extraction-how to judge a good cup of coffee? What do you mean by extraction rate and coffee concentration?

Coffee extraction-how to judge a good cup of coffee? What do you mean by extraction rate and coffee concentration?

The taste and extraction methods of coffee are very diverse. The European Fine Coffee Association once put forward the concept of Gold cup. A certain extraction rate and coffee concentration determine the taste of coffee. However, what is the extraction rate, and what is its effect on the taste of coffee?. Here is some knowledge sharing: extraction rate: the ground coffee powder is not completely soluble in water, but really soluble in water.

2016-02-22
Step Analysis of Heat conduction, convection and radiation in Coffee roasting

Step Analysis of Heat conduction, convection and radiation in Coffee roasting

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2015-09-14
General knowledge of heat conduction, convection and radiation in coffee roasting

General knowledge of heat conduction, convection and radiation in coffee roasting

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2014-12-09
General knowledge of Fine Coffee the principle of roasting coffee beans

General knowledge of Fine Coffee the principle of roasting coffee beans

To do a good job in baking, every production link can not be ignored, the selection of materials should be fastidious, the weighing of materials should be accurate, and the operation should be careful. Baking is a science. To understand the principle of baking, we must first understand the three ways of heat conduction, convection and radiation. Conduction refers to when the heat is transmitted by the heat source, causing the surrounding molecules to vibrate and release heat, gradually moving from the high temperature to the low temperature. Conduction of stainless steel

2014-12-17
Introduction to the main points of coffee roasting

Introduction to the main points of coffee roasting

(reprint) grab a handful of coffee and smell raw beans, there is always a pungent smell, which is very different from the charming smell of coffee in your impression. However, after roasting "fragrance" correctly, raw beans will emit the strongest aroma in the world. The small high-altitude Arabica coffee raw beans are like a warehouse full of chemicals. At present, scientists have identified more than 2,000 known ingredients.

2015-12-16
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