Coffee Knowledge
Latest articles, industry insights and brewing guides
Interpretation of the name of coffee beans
Why do coffee beans have such a long name? Why is there a single item, deep roast and Italian style of coffee? How is this distinguished?
Caffeine, fitness can prevent skin cancer
Recently, American scientists have found through experiments on mice that drinking a small amount of caffeine and regular exercise can prevent the skin from developing skin cancer caused by ultraviolet rays.
The three main types of coffee
At present, there are about a dozen varieties for drinking. At present, the most important varieties of coffee beans mainly come from three kinds. Arabian species (Arabica species), Romsda species and Libyan species.
Does drinking coffee affect sleep?
Many people have the experience of being too excited to sleep after drinking coffee. This is because there is a conductive substance called adenosine in the body, which controls neural activity and produces slow breathing, emotional weakness, reduced gastric acid secretion and diuretic effects.
Roasting and roasting degree of coffee
The biggest problem with first exposure to professional coffee (specialty coffee) is the name of the degree of baking. For example, city,full city, French, Espresso, etc., all produce different baking colors due to the different roasters used and the areas where they are produced.
Types and characteristics of coffee
Blue Mountain Coffee Blue Mountain Coffee is the best coffee, produced in the Blue Mountains of Jamaica. The Blue Mountains surrounded by the Caribbean Sea, whenever the sun shines directly on the blue water, it reflects to the mountain and emits a bright blue light, hence its name. This kind of coffee has the characteristics of all good coffee, not only full-bodied and mellow in taste, but also not at all because of the perfect combination of sweet, sour and bitter coffee.
An unstretchable bitterness!
The nature of raw coffee beans is not sour-mostly plain. The height of the producing area is insufficient-the taste is soft and dynamic. Poor handling and storage-five tastes are wrong. ... These are all we know, but "bitterness" is still a problem that I have to worry about every time I put raw beans into the pot! "bitterness" is often the most important consideration on the baking curve. When the temperature is too high, it is bitter and difficult.
The reason for the second baking
Recently, it is common to see questions about secondary baking. For some novice bakers, it is confusing to get big and beautiful results from secondary baking. What is more, they use secondary baked beans to comment on whether the beans are good or bad. After all, what is the impact of secondary baking?
The color, aroma, and taste of coffee
Coffee's color, aroma, and taste are the result of complex chemical changes that occur through roasting.
Arabika species and Robusta species
Arabica and Robbita species account for about 2/3 of the world's coffee production. Not suitable for growing in high temperature, low temperature, rainy, less rainy areas, beans are oval shoulder flat type, characterized by strong fragrance and good quality. Robusta is bitter but not sour, and the flavor is not very good, so it is suitable for mixed coffee. Mix the right amount of Robes in Arabica species
The selection of coffee
The process of removing impurities from the harvested coffee fruit into "raw beans" is called "refining". Refining methods are mainly divided into two categories-washing type and non-washing type. Brazil and other places originally used the non-washing type, but now some coffee also use the washing type selection method in order to pursue higher quality.
The cultivation process of Coffee
The way of harvesting coffee varies from place to place, which is mainly divided into hand picking method and shaking method. Of course, it is ideal to pick the ripe red fruit carefully with your hands, and in fact, the issue of efficiency must also be considered.
Cultivation conditions of Coffee
Coffee is mainly grown in tropical and subtropical areas, which is called coffee belt (Coffee Belt). In general, in Europe and the United States, coffee produced at high altitude is more expensive and of high quality than those at lower altitude. There is a noun called coffee belt. Coffee is produced in more than 60 countries around the world, most of which are sandwiched in the Tropic of Cancer (23 degrees south and 27 minutes north).
Characteristics of three native species of coffee
The center of the coffee fruit is a pair of symmetrical and oval seeds. The contact surface of the seeds is flat, so it is called "Flat bean". Only one round seed in the fruit is called "Pea berry". Raw beans are caused by abnormal mating, often at the end of coffee trees that bloom too late or too early. Its rounded shape
Varieties of coffee trees
1.5 Arabica coffee varieties improved Arabica coffee beans include traditional varieties that are very close to the original, as well as mutants or hybrids mated with Robusta. Coffee variety improvement is not only limited to the fight against diseases and insect pests, but also the pursuit of a steady stream of harvests. 1. The variety of Arabica coffee belongs to the evergreen shrub Ara of the genus Rubiaceae.
Chaozhou Coffee
Generally speaking, the better-known Asian coffee is the "Mantenin" coffee produced in Sumatra, Indonesia; and the "Vietnam" coffee, which has reached the second largest coffee production in the world; or the hot "Yunnan" coffee that has been stir-fried in recent years. Asian coffee has a special botanical aroma, and the aroma of Asian beans with a touch of wood is more calm and bright.
About Coffee Grinding
The concept and principle of coffee grinding: the operation of crushing roasted coffee beans is called grinding. The props used to grind coffee beans are called grinders. The ideal time to grind coffee is to grind it before cooking. Because ground coffee is easy to oxidize and lose its flavor, especially without proper storage, coffee powder is also easy to change flavor, so it is naturally impossible to cook mellow coffee. Some
Basic knowledge of coffee grinding and brewing
The ideal time to grind coffee is to grind it before steaming. Because ground coffee is easy to oxidize and lose its flavor, especially without proper storage, coffee powder is also easy to change flavor, so it is naturally impossible to brew mellow coffee. Some people are afraid of trouble or do not want to buy a bean grinder. They usually buy ready-made coffee powder when drinking coffee at home. At this time, they should pay special attention to storage.
Relationship between Grinding degree of Coffee Powder and extraction method
Suitable for fineness grinding Turkish copper pot (Ibrik, fine powder), mocha pot, espresso machine (very fine grinding). Suitable for medium grinding filter paper dripping method, flannel dripping method, plug air kettle. Suitable for roughness grinding water drop coffee machine (extreme roughness grinding), dripping filter pot (extreme roughness grinding)
Charcoal roasted coffee
Charcoal coffee is very interesting. It comes from Japan, but he is a well-rounded guy.