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Is there any oil in the coffee?

Is there any oil in the coffee?

Spring is warm and sunny, and the temperature here in Chongqing is getting higher and higher, so recently more friends have asked whether fresh beans should be dry on the surface, and those with glossy light must not be fresh, right?

2014-07-02
What kind of raw beans are high-quality raw beans?

What kind of raw beans are high-quality raw beans?

First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color.

2014-07-03
General knowledge of coffee roasting introduction to the oil yield and freshness of coffee beans

General knowledge of coffee roasting introduction to the oil yield and freshness of coffee beans

When we open a can of coffee beans, we sometimes see coffee beans wrapped in a thin layer of fat. It seems that the oil evenly distributed on the surface of coffee beans is actually not oil, but a water-soluble organic substance that looks like oil. Coffee oil itself contains a lot of coffee aroma ingredients, which can be dissolved in water, so the surface of your brewed coffee will not be covered with greasy.

2014-11-18
The core process of the extraction principle is as follows: 1 grind coffee beans and increase the surface area of coffee in contact with water

The core process of the extraction principle is as follows: 1 grind coffee beans and increase the surface area of coffee in contact with water

When it comes to brewing coffee, there are many kinds of coffee-making equipment on the market and different methods. But in terms of the principle of coffee extraction, it's all the same. The core process of the extraction principle is as follows: (1) grinding coffee beans to increase the surface area of coffee in contact with water; (2) fully soaking coffee powder in aqueous solution and hydrophilic dissolution of coffee essence; (3) separating coffee solution and coffee grounds

2016-05-06
What is the relationship between the oil yield of roasted coffee beans and freshness?

What is the relationship between the oil yield of roasted coffee beans and freshness?

Should we buy coffee beans that have "oil" or "no oil" in appearance? Have you ever seen oily coffee beans? Why do some coffee beans have a shiny surface, while others are "dry and comfortable" without greasy? What does the "oil" of coffee beans have to do with freshness? Should we buy coffee beans that are "oily" or "unoiled" in appearance? Coffee oil, which is not oil, is evenly dispersed.

2015-03-05
A brief introduction to roasting degree general knowledge of roasting of boutique coffee beans

A brief introduction to roasting degree general knowledge of roasting of boutique coffee beans

Roasting is roughly divided into light (LIGHT), medium (MEDIUM), deep (DARK) and very deep (VERY DARK) roasting, light roasted coffee beans: will have a strong smell, very crisp, high acidity is the main flavor and light mellow. Medium-roasted coffee beans: have a strong mellow, but also retain most of the acidity. Deep-roasted coffee beans: with traces of grease on the surface, sour

2015-04-16
Coffee beans roasting knowledge of coffee beans out of oil is good?

Coffee beans roasting knowledge of coffee beans out of oil is good?

Some of the coffee beans in the coffee bar are shiny and glossy, while others are dull. After a while, it was found that the surface of the dull coffee beans also looked glossy. Perhaps friends who often drink coffee at home will also have such doubts: is the oiled coffee bean good? Will it affect the taste of the coffee? Why do coffee beans produce oil? Sometimes it can be found in coffee bean stores.

2015-02-06
What kind of raw beans are high-quality raw beans? How to choose raw coffee beans? Sidamo raw bean

What kind of raw beans are high-quality raw beans? How to choose raw coffee beans? Sidamo raw bean

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the processing of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it.

2016-04-14
Understand defective beans what kind of raw beans are high-quality raw beans?

Understand defective beans what kind of raw beans are high-quality raw beans?

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2015-02-13
Explain the roasting degree of four coffees

Explain the roasting degree of four coffees

CinnamonRoast: cinnamon baking: this is the lightest kind of baking. There is no oil on the surface of the coffee beans. Large coffee bean manufacturers often mix the lightly roasted coffee beans with the coffee beans they sell. Because doing so can save money and increase the amount. Coffee beans baked with cinnamon usually don't look like CityRoast baked in the city at the moment.

2014-06-20
Boutique coffee beans what kind of raw beans are high quality raw beans

Boutique coffee beans what kind of raw beans are high quality raw beans

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2014-11-20
Three important factors of Coffee three factors affecting Coffee Flavor

Three important factors of Coffee three factors affecting Coffee Flavor

So how to master these variables when making coffee, and which variables will cause the difference in the taste of coffee? Let's take a look at the three major factors that affect coffee making. First, the temperature of hot water when it comes into contact with coffee powder, hot water will accelerate the movement of various ingredients, and the speed of sour ingredients is the fastest, and the amount of movement from the center of coffee powder to the surface is basically the same in a short time.

2016-06-03
High-quality coffee raw beans what kind of raw beans are high-quality raw beans?

High-quality coffee raw beans what kind of raw beans are high-quality raw beans?

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2014-12-28
Good raw beans what kind of raw beans are high quality raw beans?

Good raw beans what kind of raw beans are high quality raw beans?

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2015-10-13
Coffee beans AA grade AAA coffee is based on what grade? What are the characteristics?

Coffee beans AA grade AAA coffee is based on what grade? What are the characteristics?

Buy coffee beans should pay attention to choose products with QS certification, now the country has included coffee beans into the scope of enforcement, if there is no QS, it means that this product is not in line with food safety regulations. 2 about coffee grease: coffee is damp, Italian coffee beans should have oil itself. The law of fat is as follows: the surface of fresh, medium-and deep-roasted coffee beans will

2016-10-21
What kind of raw beans are high-quality raw beans? Coffee bean quality

What kind of raw beans are high-quality raw beans? Coffee bean quality

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2015-09-12
Explanation on the roasting degree of coffee

Explanation on the roasting degree of coffee

First, when studying the roasting degree of coffee beans, the degree of roasting can be judged by sound, color and aroma. Its color ranges from light gray to dark brown, and its aroma is gradually rich from light and elegant; the sound is made two times of bursting sound. Taking the heat-resistant raw bean as an example, the first explosion begins at about 7 minutes and lasts for about 2 minutes, and its voice is low. It indicates the beginning of pyrolysis, the conversion of starch to caramel and water steaming.

2014-07-22
Fine coffee to learn what kind of raw beans are high-quality raw beans?

Fine coffee to learn what kind of raw beans are high-quality raw beans?

What kind of raw beans are high-quality raw beans? First look at the surface of beans, fresh and high-quality raw beans, the surface is shiny, in addition, the handling of good raw beans, uniform color, the surface of uneven color can not be called good beans, must choose uniform color. Secondly, the particle size is the same, which is also evidence of good quality management. Make sure that the particle size is the same when you buy it. Even

2014-11-11
Introduction of oil production and freshness of coffee beans

Introduction of oil production and freshness of coffee beans

When we open a can of coffee beans, we sometimes see coffee beans wrapped in a thin layer of fat. It seems that the oil evenly distributed on the surface of coffee beans is actually not oil, but a water-soluble organic substance that looks like oil.

2014-05-19
The method of judging the freshness of coffee beans

The method of judging the freshness of coffee beans

Have you ever seen oily coffee beans? Why do some coffee beans have a shiny surface, while others are "dry and comfortable" without greasy? What does the "oil" of coffee beans have to do with freshness? Should we buy coffee beans that are "oily" or "unoiled" in appearance?

2014-08-09
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