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The preservation of coffee beans. Five common preservation methods of coffee beans.

The preservation of coffee beans. Five common preservation methods of coffee beans.

Roasted coffee beans are easily exposed to oxygen in the air to produce oxidation, which deteriorates the oil quality, volatilizes and disappears aroma, and then accelerates deterioration through temperature, humidity, sunshine and so on. Especially after multi-layer treatment of low-caffeine coffee beans, oxidation is carried out faster. Therefore, in order to maintain the aroma and quality of coffee, how to package and preserve coffee beans is necessary.

2015-03-05
Coffee Roasting Hot Air Roaster

Coffee Roasting Hot Air Roaster

Coffee roasting refers to the heating of raw beans to convert starch in raw beans into sugar and acidic substances at high temperature. Cellulose and other substances will be carbonized to varying degrees. Moisture and carbon dioxide will volatilize. Protein will be converted into enzymes and fats. The remaining substances will combine together to form an oil film layer on the surface of coffee beans. In the process, coffee acids will be generated.

2014-08-20
Storage methods of coffee beans there are several ways to preserve coffee beans

Storage methods of coffee beans there are several ways to preserve coffee beans

Roasted coffee beans are easily exposed to oxygen in the air to produce oxidation, which deteriorates the oil quality, volatilizes and disappears aroma, and then accelerates deterioration through temperature, humidity, sunshine and so on. Especially after multi-layer treatment of low-caffeine coffee beans, oxidation is carried out faster. Therefore, in order to maintain the aroma and quality of coffee, how to package and preserve coffee beans is necessary.

2015-05-18
Preservation methods of coffee beans

Preservation methods of coffee beans

Roasted coffee beans are easily oxidized by oxygen in the air, which deteriorates the quality of the oil, volatilizes and disappears, and then deteriorates quickly through temperature, humidity, sunlight and so on.

2014-07-12
Coffee Roasting Equipment

Coffee Roasting Equipment

Coffee is popular mainly because of the aroma formed after roasting and the taste when drinking. Coffee beans themselves do not have any special taste, roasting will be a thorough transformation and reorganization of the substances inside the beans, forming a new structure, thus bringing out the flavor of coffee, and coffee roasting is also a coffee knowledge that baristas need to understand. Baking tools Baking machine, sub

2014-11-22
The way coffee is roasted

The way coffee is roasted

Due to different principles, the traditional roaster can be divided into two baking methods: hot air type (factory type more than 100 kg) and direct heating type-gas or charcoal (divided into large and medium-sized, small 1.5 kg, large 10 kg).

2014-07-22
Roy Korean coffee raw bean roaster GENE CAFE 3D hot air professional coffee bean roaster

Roy Korean coffee raw bean roaster GENE CAFE 3D hot air professional coffee bean roaster

Brand name: Karent Product parameters: brand: Karent Color Classification: red and Black item No.: Lloyd GENE CAFE 3D Product name: Korean original GENE CAFE 101Professional Coffee Roaster Specification: 300g case count: 1PCS one is designed for professional players, so that you can easily bake coffee beans with perfect flavor and satisfactory taste.

2016-01-05
Coffee History and Culture: the connection between Coffee Literature and Art in Argentina

Coffee History and Culture: the connection between Coffee Literature and Art in Argentina

Buenos Aires, the capital of Argentina, is said to be a city with more cafes than Paris. There are currently 3250 coffee shops in Buenos Aires, which means there is one coffee shop for every 1000 people in the city. Argentine media wrote that the coffee shop is the load of daily life and historical heritage. It can be used not only for people to call friends and talk, but also to be isolated from the group.

2015-12-02
Time / temperature ratio and other subtle influence properties

Time / temperature ratio and other subtle influence properties

All roasting modes are different because of the roasting process, so even coffee beans that look the same in appearance behave very differently in the cup. When you bake a coffee bean to a fixed roasting color in a short time with fast heat / high temperature (or a combination of air flow high temperature and fast air flow), the roasted coffee bean retains more acidity.

2015-04-14
Argentine Historical and Cultural legends in the Classic Coffee list of San Bernardo Cafe

Argentine Historical and Cultural legends in the Classic Coffee list of San Bernardo Cafe

Buenos Aires, the capital of Argentina, is said to be a city with more cafes than Paris. There are currently 3250 coffee shops in Buenos Aires, which means there is one coffee shop for every 1000 people in the city. Argentine media wrote that the coffee shop is the load of daily life and historical heritage. It can be used not only for people to call friends and talk, but also to be isolated from the group.

2014-05-14
Japanese Kalita coffee brand; copper spoon coffee beans measuring spoon single product specialty coffee spoon

Japanese Kalita coffee brand; copper spoon coffee beans measuring spoon single product specialty coffee spoon

Copper maintenance to keep clean and dry is the basis of copper maintenance, copper dark phenomenon is very common, because copper in the air for a long time will rust. Copper will be oxidized into black copper oxide in humid air, and the copper oxide on the surface of copper will continue to react with carbon dioxide in the air to generate a layer of green basic copper carbonate. Copper also reacts with hydrogen sulfide in the air.

2016-01-18
Coffee brewing method: the principle of siphon pot and matters needing attention in operation

Coffee brewing method: the principle of siphon pot and matters needing attention in operation

Principle: when you heat the pot, the temperature of the water in the pot rises. Many people think that the later principle is that the next kettle boils, and the steam suppresses the hot water on the kettle, and the principle is correct, but as a university has also studied physics, the obsessive-compulsive disorder should be explained here: to be exact, the principle is that the lower kettle produces a lot of steam in the process of rising temperature, and the top of the kettle is free.

2015-12-11
In a household roaster, it becomes quite easy to bake coffee beans by yourself.

In a household roaster, it becomes quite easy to bake coffee beans by yourself.

Household roaster in recent years the rise of a small amount of coffee roasting craze, there are many household roasters on the market, roasting their own coffee beans has become a very simple thing. At present, household roasters can be divided into three types: self-ignition type, hot air type and drum type. Although these are not very sophisticated professional models, as long as they are handled properly, the roasted coffee beans are still mellow.

2015-11-03
Coffee roasting heat source heat conduction and convection

Coffee roasting heat source heat conduction and convection

At present, the most widely used baking equipment is semi-direct fire (semi-hot air) baking, where the half is only relative to the baking heat source, not the thermal efficiency distribution ratio, such as the probat baking machine we use, in terms of thermal efficiency distribution, it is about 3(direct fire):7(hot air) or 2:8, rather than 5:5. In this article, I try to analyze the characteristics of these two heat sources.

2015-07-14
Detailed introduction to the operation of Fuji Royal small roaster 10kg Rmuri 110

Detailed introduction to the operation of Fuji Royal small roaster 10kg Rmuri 110

[introduction] A lot of baking is also OK. Peace of mind 10kg FUJIROYAL (Fuji Royal) small series of the only exhaust fan as the standard model. The exhaust air volume is strong, fine-tuning is simple and easy. A large number of coffee beans can also meet your expectations when roasted. ● observation is easy to bake a lot of OK. The only member of the reassuring 10kg FUJIROYAL (Fuji Royal) small series

2015-12-10
Coffee roasting: introduction of i-ROAST 2 Coffee Roaster (hot air household roaster)

Coffee roasting: introduction of i-ROAST 2 Coffee Roaster (hot air household roaster)

Introduction: model: i-ROAST 2 Coffee Roaster (hot air household roaster) is the most popular household roaster with comprehensive functions, which is easy to use and suitable for coffee players to bake coffee with their own characteristics and taste. 150g coffee can be roasted each time. Model: i-ROAST 2 Coffee Roaster (hot air household roaster) Brand: i-Roast specification: length / width / height (9 / 9)

2015-12-25
Roaster detailed explanation of coffee bean roasting process

Roaster detailed explanation of coffee bean roasting process

Classic elements are used in the design of the fuselage. Simplicity, industry and science and technology are the elements that you want to express. Type D is still used in the design of the throttle here, which is still controlled by 100 gears of infinitely precise control. the upward flow of air caused by gas combustion or electric heating during the baking machine will naturally produce a positive pressure in the furnace. the function of the exhaust system is to turn hot air and baking.

2015-09-11
Types of coffee packaging

Types of coffee packaging

Vacuum packaging containers (cans, aluminum foil bags, plastic bags) draw out the air from the container after filling the coffee. Although it is called a vacuum, it actually removes at most 90% of the air, and the surface area of the coffee powder is larger than that of the coffee beans, and even the remaining air can easily combine with the powder to affect the flavor. Gas filling and packaging design a needle on a metal bag

2014-07-09
Preservation skills of coffee beans

Preservation skills of coffee beans

As far as gas is concerned, the specific gravity of carbon dioxide is the same as that of air. Therefore, in the same confined space, carbon dioxide precipitates at the bottom, while air floats at the top. After understanding this truth, when you choose a container or bag, you can judge its practicality.

2014-07-12
Barista training knowledge: types of coffee baking utensils

Barista training knowledge: types of coffee baking utensils

Coffee is popular mainly because of the aroma formed after roasting and the taste when drinking. The coffee raw bean itself does not have any special taste, but roasting completely changes and reorganizes the substances inside the raw bean to form a new structure, thus bringing out the mellow flavor of coffee, and coffee roasting is the coffee knowledge that baristas need to know. Tool roaster for baking, points

2015-10-15
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