Coffee Technology Lists
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Coffee technology coffee brewing method
According to the contact mode between water and coffee powder, coffee brewing can be classified into four categories: steaming, pressurization, gravity and leaching. If the water passes through the coffee only once, the finished product will contain mainly soluble substances (including caffeine). If the water circulates through the coffee powder many times (like a common circulating filter), the less soluble substances in the coffee beans will also enter the finished product, causing the taste.
2014-09-22 Coffee technology coffee brewing method -
Coffee Technical Coffee extraction Classification
Classification of coffee extraction methods according to the significant difference of coffee extraction pressure and extraction time, modern coffee extraction methods can be simply divided into two types: Italian fast espresso espresso and immersion extraction steep extraction. Italian fast espresso espresso was invented in Italy at 9 atmospheric pressure and 92 degrees water temperature to extract 25 milliliters of concentration in 25 seconds.
2014-09-22 Coffee extraction classification coffee -
Coffee technology Coffee extraction principles
Coffee extraction principle Coffee production equipment is various, methods are also different, but the core extraction principle is the same. Coffee extraction principle core process: 1 crush coffee beans, increase coffee and water contact surface area; 2 coffee powder fully soaked in aqueous solution, coffee essence hydrophilic dissolution; 3 separation of coffee solution and coffee grounds. All modern coffee extractions are steeped,
2014-09-22 Coffee technology coffee extraction principles -
Coffee making briefly describes the process of brewing coffee at home
Many young friends, including some old people, of course. They are very strange to coffee, and whenever they talk about making coffee, they find it very difficult to understand, thinking that it is a very skilled and complex activity. The Chinese tend to summarize the production of freshly ground coffee as a boiled word. Well, for these friends, I will try my best to introduce this question to you here.
2014-09-17 Coffee knowledge making coffee at home how to make coffee -
Delicious ice drops of coffee brewed over time
How long does it take to make a good cup of coffee? compared with 25 seconds of Italian concentrate, 1 minute siphon stirring and 3 minutes of hand brewing coffee, ice drop coffee is the longest way to extract, after more than hours of long waiting, in exchange for this cup of cool summer delicacy. The origin and principle of ice drop coffee before introducing ice drop coffee, we must
2014-09-17 Coffee knowledge ice drop coffee coffee taste -
Coffee technology Coffee pressing powder loading operation process
1. How much should the scale of the flour grinder be adjusted to? What I want to say is that the scale is only a reference, different brands have different grinding scales, and the same brand models of bean grinders are not displayed exactly the same under similar scales: the scale only states which direction you are going to be thick and which is fine. When you find the right thickness of your powder, the influence skill of the scale is a little bit. Conditions
2014-09-17 Coffee knowledge coffee technology coffee powder coffee encyclopedia -
Coffee technology Coffee roasting methods and principles
The raw coffee beans are fried to show a unique brown color, aroma and taste. The most important thing of frying and baking is to be able to stir-fry the inside and outside of the beans evenly without overscorching. 80% of the taste of coffee depends on roasting, which is the most important and basic condition for making good coffee. The basic principle of ● fried culture the most important thing is to be able to stir-fry the inside and outside of the beans evenly. First
2014-09-16 Coffee knowledge coffee baking roasting methods -
The technique of selecting coffee beans manual inspection of raw coffee beans
With reference to the origin and grading, grab the raw beans with your hands and check their appearance. The feeling of the hand is very important. Judging from the appearance of raw beans, their quality must have some experience, at the same time, it is difficult to set standards. The color has no difference in uniform light green, with luster. Also take into account the changes in color after harvest. The shape requires uniform and neat particles, and there should be no deformed beans.
2014-09-16 Coffee knowledge raw coffee bean selection manual inspection -
Coffee knowledge from the following points to see good coffee
From the roasting method to see coffee: the age of green beans, type, room temperature, moisture content and roasting temperature have a close relationship. In general, select coffee is usually roasted in small batches, which must be strictly tested and analyzed in advance, and then watched by the roaster throughout the whole process until it is roasted to the best state. Ensure that the coffee beans are evenly cooked inside and outside to ensure quality
2014-09-16 Coffee knowledge Good coffee Coffee encyclopedia -
Fresh coffee beans make good coffee.
The soul of coffee flavor is fresh, so no matter which country it is produced in, which manufacturer processes it, which merchant sells it, the most important thing for coffee beans is to ensure freshness. Generally speaking, the best drinking period of coffee is two weeks after roasting, when the coffee beans are freshest and the aroma (Aroma) tastes best.
2014-09-16 Coffee knowledge Fresh coffee beans Good tasting coffee Brewed coffee -
Coffee drawing skills whole milk is easier to foam.
Milk fat exists in a small crystal ball coated with a thin film of protein and fat, and the film of each crystal ball can prevent the crystal balls from colliding with each other and form a larger fat bubble. In addition, the film protects the crystal ball from being digested by enzymes, making the milk less sweet or not sweet at all. During the heating process, the weight of the protein in the milk increases, making the milk thicker.
2014-09-16 Coffee knowledge whole milk easy to foam coffee flower -
The relationship between the Grinding degree of Coffee Powder and extraction method
* suitable for fine grinding of Turkish copper pot (Ibrik), mocha pot and espresso machine (very fine grinding). * suitable for medium grinding filter paper dripping method, flannel dripping method, air stopper. * suitable for roughness grinding water drop coffee machine (extreme roughness grinding), dripping filter pot (extreme roughness grinding)
2014-09-16 Coffee knowledge coffee powder grindability coffee extraction method -
Coffee knowledge Preservation of Coffee beans
The biggest enemy of coffee beans is the air. Caffeine has a large surface area and is easy to oxidize and damp so that its flavor is sharply reduced. Whole coffee beans last longer than powdered coffee. When you really want to make coffee, grinding coffee beans is the right way. The storage period of coffee beans at room temperature is 2 weeks after roasting. If you plan to taste the beans within 2 weeks, put the beans
2014-09-16 A complete knowledge of coffee and the preservation of coffee beans -
Maintenance of flannel filter
The coffee brewed with flannel filter is the most mellow and delicious. However, the arrangement and safekeeping of the filter screen is more troublesome. Maintenance of flannel filter: when using the new flannel filter, in order to remove the residual odor on the cloth, you can use a brush to wash, be careful not to use soap or soap powder, because the smell can not fall off. After washing, boil with used coffee powder and water for 5 minutes before washing with water. Filter
2014-09-16 Flannel strainer coffee supplies coffee utensils -
Skills in the use of thin-mouth pots
The design of the thin-mouth pot is based on the idea of convenience for users, and the outlet must be thin, otherwise it is difficult to draw a circle on the coffee powder. The water injection techniques of filter paper dripping method and flannel dripping method directly affect the effect of steaming. The goal of water injection is: (1) the water output is stable and controllable; (2) the air is not doped: (1) in order to ensure that each water output is stable and controllable, it is necessary to fix the amount of water in the kettle and the position of water injection, so fine.
2014-09-16 Techniques for using thin-mouth pots coffee utensils and coffee utensils -
Selection of water temperature for filter paper dripping method
When using the filter paper dripping method, the water temperature can best achieve the taste balance in 82C~84C. Exceeding this temperature will make some flavors particularly obvious, and if you don't reach this temperature, you won't be able to extract enough delicious ingredients. The effect of water temperature on taste the water temperature above 88C is too high, it is easy to produce air bubbles, resulting in incomplete steaming. 88 Craft 84 C (suitable for deep and medium baking) has a strong taste.
2014-09-16 Filter paper dripping method coffee knowledge coffee encyclopedia -
Honeycomb structure of coffee beans
I read a coffee magazine and one of the interviews was very interesting. Coffee enthusiast, Professor Yukio Hiroase of Kanazawa University in Japan, has a doctorate in engineering and specializes in computational mechanics. the boss has studied coffee beans with a hundred and twenty thousand scientific spirit and achieved the following results: 1 the interior of roasted coffee beans is honeycomb structure. different roasting methods form different honeycomb structures. 2 Honeycomb cavity
2014-09-16 Coffee beans boutique coffee beans coffee encyclopedia -
The main points of grinding coffee beans
Coffee should be preserved in the form of coffee beans as much as possible and ground into powder before extraction. The main points of grinding are as follows: 1 the degree of grinding should be average. Uneven grinding will cause uneven extraction and make the extracted coffee liquid taste messy. (2) minimize the friction heat caused by grinding beans. The friction heat produced during grinding can obviously damage the taste and aroma of coffee. It is inevitable to produce heat during grinding.
2014-09-16 Ground coffee beans raw coffee beans -
The production of Italian espresso Espresso
A perfect Espresso is hard to come by. Making a good Espresso can be a challenge for both coffee lovers at home and the experienced Barista in the cafe. Below, we will discuss the various factors that affect Espresso. 1. Coffee beans without good coffee beans, there is no good Espresso. Coffee beans must be fresh. In the case of Espresso
2014-09-16 Espresso made by Espresso -
Coffee knowledge Chemical composition of Coffee General knowledge of Coffee
How many substances does a cup of coffee contain? Coffee extracted by traditional methods such as hand-brewing and Syphone contains more than 200 substances, while 1500 qualities can be extracted in an instant when using a Ruyi coffee machine and mocha pot. Unexpectedly, there are so many things in a cup of flavored water, the charm of coffee is made up of these substances. Coffee beans.
2014-09-16 Knowledge of coffee chemical composition of coffee common sense of coffee