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The pump of coffee machine basic knowledge of fine coffee

The pump of coffee machine basic knowledge of fine coffee

From the understanding of the principle of the pump, the pump can be divided into three types: volumetric pump, power pump and electromagnetic pump. The volumetric pump is pressurized by changing the volume of the cavity, such as plunger pump, rotary plate pump, gear pump. Power pump is the impeller rotation work to promote the liquid to boost, such as vane pump, centrifugal pump and so on. An electromagnetic pump is used to transport a good liquid conductor. Volumetric pumps are used in places with high pressure and low flow.

2015-07-14
A hill where coffee is roasted.

A hill where coffee is roasted.

When cooking siphon. What people pay most attention to is. After cooking. Is it an airport after all? Or D Cup? In the end is. The higher the better? Is it better than a mediocre one? Generally speaking. The coffee powder will be mixed when cooking siphon. The first mixing is to make the coffee powder soak in the coffee powder after the coffee powder is soaked, so it produces a lot of coffee powder.

2014-10-24
Powder filler and espresso extract how to make espresso with coffee beans

Powder filler and espresso extract how to make espresso with coffee beans

Filler base diameter: the filler base diameter is very important, but the mainstream problem in the market is not the filler diameter, but its effective filling area. Most filler manufacturers, when making fillers, almost always wrap the edge of the base in an arc. However, this small design reduces the effective filling area. The following figure illustrates this phenomenon (VS

2016-07-19
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 brewing method: the historical origin and operation method of hand-made coffee

Coffee brewing method: the historical origin and operation method of hand-made coffee

I like to make myself a cup of coffee at the beginning of the day, the beautiful melody of the bean grinder and the slow and graceful flow of the thin-mouth pot, as if gently opening the curtain of the day. Making coffee by hand allows you to quietly focus on such a wonderful thing. I like to collect my thoughts and adjust my mood in this quiet process. I feel as excited as waiting for the sunrise.

2015-12-02
Powder filler and Italian espresso extraction filler Italian coffee machine Italian coffee beans

Powder filler and Italian espresso extraction filler Italian coffee machine Italian coffee beans

Filler base diameter: the filler base diameter is very important, but the mainstream problem in the market is not the filler diameter, but its effective filling area. Most filler manufacturers, when making fillers, almost always wrap the edge of the base in an arc. However, this small design reduces the effective filling area. The following figure illustrates this phenomenon (VS

2016-06-23
The pumps of coffee machine are volumetric pump, power pump and electromagnetic pump.

The pumps of coffee machine are volumetric pump, power pump and electromagnetic pump.

From the understanding of the principle of the pump, the pump can be divided into three types: volumetric pump, power pump and electromagnetic pump. The volumetric pump is pressurized by changing the volume of the cavity, such as plunger pump, rotary plate pump, gear pump. Power pump is the impeller rotation work to promote the liquid to boost, such as vane pump, centrifugal pump and so on. An electromagnetic pump is used to transport a good liquid conductor. Volumetric pumps are used in places with high pressure and low flow.

2015-09-25
How is the steaming and pre-soaking of coffee before brewing?

How is the steaming and pre-soaking of coffee before brewing?

Steaming and pre-soaking are the first stage of the extraction of single hand-brewed coffee and esp. The quality of steaming and pre-soaking directly affects the taste of a cup of coffee. Although they are used in two kinds of coffee with different production processes, they have a very close relationship and the same principle. Steaming and pre-soaking: steaming: refers to sprinkling hot water on coffee gently, gently, quickly and evenly when making hand-brewed coffee.

2015-11-25
Grasp the most important process of coffee extraction what is the coffee extraction time?

Grasp the most important process of coffee extraction what is the coffee extraction time?

Steaming and pre-soaking are the first stage of the extraction of single hand-brewed coffee and esp. Whether steaming and pre-soaking are sufficient or not directly affects the taste of a cup of coffee. Although they are used in two types of coffee with different production processes, they have a very close relationship and common principles. Steaming and pre-steaming: steaming: refers to the production of hand-made coffee will be hot water light, soft, fast, uniform

2015-11-05
The process of coffee extraction the relationship between grinding and extraction of coffee beans

The process of coffee extraction the relationship between grinding and extraction of coffee beans

From: Yun Fei private roaster (if you have a dream, take good care of her) 12:17:19 as a barista, you can't change the facilities in the store, such as the brand of the coffee machine, the choice of the water purifier, the temperature of the cooking head, the specifications of the powder bowl with the handle, which cannot be changed as an employee. But what best embodies the ability of a barista

2015-11-10
Understanding the extraction rate is the basis of making a cup of espresso

Understanding the extraction rate is the basis of making a cup of espresso

What I want to tell you in the article is that the concept of extraction rate is not difficult, and there is little relationship between extraction rate and concentration, and extraction rate is very important, which you need to know as a barista. The article will mention several questions: (1) the concept of gold cup criterion; (2) the relationship between extraction rate and concentration; (3) knowing the extraction rate, it is meaningful for us to adjust the grinding degree and powder quantity every day, and then we can make it better.

2015-11-05
Understanding the extraction rate is the basis of making a cup of espresso

Understanding the extraction rate is the basis of making a cup of espresso

What I want to tell you in the article is that the concept of extraction rate is not difficult, and there is little relationship between extraction rate and concentration, and extraction rate is very important, which you need to know as a barista. The article will mention several questions: (1) the concept of gold cup criterion; (2) the relationship between extraction rate and concentration; (3) knowing the extraction rate, it is meaningful for us to adjust the grinding degree and powder quantity every day, and then we can make it better.

2015-11-09
Grasp the most important process of coffee extraction hand-brewed coffee extraction principle single coffee Chinese coffee

Grasp the most important process of coffee extraction hand-brewed coffee extraction principle single coffee Chinese coffee

Steaming and pre-soaking are the first stage of the extraction of single hand-brewed coffee and esp. Whether steaming and pre-soaking are sufficient or not directly affects the taste of a cup of coffee. Although they are used in two types of coffee with different production processes, they have a very close relationship and common principles. Steaming and pre-steaming: steaming: refers to the production of hand-made coffee will be hot water light, soft, fast, uniform

2016-04-20
Coffee brewing method hand brewing pot: an introduction to the history of hand brewing coffee and an analysis of its operation methods

Coffee brewing method hand brewing pot: an introduction to the history of hand brewing coffee and an analysis of its operation methods

I like to make myself a cup of coffee at the beginning of the day, the beautiful melody of the bean grinder and the slow and graceful flow of the thin-mouth pot, as if gently opening the curtain of the day. Making coffee by hand allows you to quietly focus on such a wonderful thing. I like to collect my thoughts and adjust my mood in this quiet process. I feel as excited as waiting for the sunrise.

2016-01-06
The use of high-quality coffee utensils, mocha kettle and powder tablets

The use of high-quality coffee utensils, mocha kettle and powder tablets

The mocha pot I use is made of TIAMO4. After the cup is filled with coffee powder, gently flatten the coffee powder. Remember that the coffee powder should not be full, it is best to fill the cup with 4 canister 3, then place the powder tablet on the top of the powder, gently press it, flatten the surface of the coffee powder, remember to place the protuberance of the powder up, tighten the pot, and then start heating.

2015-01-21
Coffee extraction is the most important process of brewing coffee, the role of steaming and preleaching in extraction and

Coffee extraction is the most important process of brewing coffee, the role of steaming and preleaching in extraction and

Steaming and pre-soaking are the first stage of the extraction of single hand-brewed coffee and esp. Whether steaming and pre-soaking are sufficient or not directly affects the taste of a cup of coffee. Although they are used in two types of coffee with different production processes, they have a very close relationship and common principles. Steaming and pre-steaming: steaming: refers to the production of hand-made coffee will be hot water light, soft, fast, uniform

2016-02-17
Italian coffee tutorial: coffee pull flower jar sharp mouth and round mouth difference point

Italian coffee tutorial: coffee pull flower jar sharp mouth and round mouth difference point

The flower-pulling jar is a weapon that must be used for coffee flower pulling. The careful baristas will find that the flower-pulling jars on the market are different in shape except for capacity, so they are good at reasonable selection and application, and can finely display their flower-pulling skills in every operation. For those baristas who pursue the flower formula (flower script), do not be extreme at a certain point, and should be comprehensive.

2015-12-09
Introduction to the course of making Italian Coffee: a brief introduction to the details of steaming and presoaking

Introduction to the course of making Italian Coffee: a brief introduction to the details of steaming and presoaking

Steaming and pre-soaking are the first stage of the extraction of single hand-brewed coffee and esp. The quality of steaming and pre-soaking directly affects the taste of a cup of coffee. Although they are used in two kinds of coffee with different production processes, they have a very close relationship and the same principle. Steaming and pre-soaking: steaming: refers to sprinkling hot water on coffee gently, gently, quickly and evenly when making hand-brewed coffee.

2015-12-18
Italian concentrated extraction Italian espresso extraction time how to make Italian espresso

Italian concentrated extraction Italian espresso extraction time how to make Italian espresso

A good concentration of extraction cup requires stable pressure, suitable water temperature, suitable grinding degree, suitable powder content and so on. Then what is appropriate? For example: WBC stipulates that 1 serving of Espresso is 1oz (25~35ml, including Crema), boiled at a temperature of 90.5 to 96 degrees Celsius, brewing pressure 8.5bar~9.5bar, and extraction time of 20 to 30 seconds (no mandatory stipulation). In order to achieve the above

2016-07-16
Why do you use a powder press for the powder hammer thing?

Why do you use a powder press for the powder hammer thing?

Why do you use a powder press? baristas all know that when using an espresso machine, the hot water is brewed at about 9 atmospheres (of course, this is not a fixed value, there are 12 atmospheres or more), and the pressure is very high. When the water penetrates the coffee cake, the water is inert. What is inertia, that is, water penetrates through the weakest part of the coffee cake

2015-09-23
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