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Why do coffee beans need to be roasted?

Why do coffee beans need to be roasted?

Why do coffee beans need to be roasted? Coffee will be fascinated by people, the key lies in the aroma formed after baking and the taste and flavor when drinking. The taste of raw coffee beans is described as the smell of soil or grass, but baking is like magic, which completely changes and reorganizes the internal substances of raw coffee beans to form a new structure and form a strong and mellow flavor. But

2015-05-29
Why coffee beans have such a long name?

Why coffee beans have such a long name?

Why coffee beans have such a long name? Why is there a single item, deep roast and Italian style of coffee? Where did so many names come from?

2014-08-09
Why do foreigners drink coffee every day? An amazing secret you don't know!

Why do foreigners drink coffee every day? An amazing secret you don't know!

Why do foreigners drink coffee every day? The benefits of coffee there are many advantages of coffee, which can be roughly divided into nine points. [1] drinking coffee is good for the skin. Coffee can accelerate the metabolism of the skin, accelerate the discharge of waste cutin, and dilute the dark circles under the eyes caused by poor circulation. In addition, it has the effect of antioxidation. Drinking coffee regularly can keep skin cells full of vitality and prevent cell oxygen.

2015-08-03
Why do foreigners drink coffee every day? An amazing secret you don't know!

Why do foreigners drink coffee every day? An amazing secret you don't know!

Why do foreigners drink coffee every day? The benefits of coffee there are many advantages of coffee, which can be roughly divided into nine points. [1] drinking coffee is good for the skin. Coffee can accelerate the metabolism of the skin, accelerate the discharge of waste cutin, and dilute the dark circles under the eyes caused by poor circulation. In addition, it has the effect of antioxidation. Drinking coffee regularly can keep skin cells full of vitality and prevent cell oxygen.

2015-08-26
Explain in detail-Why does coffee taste sour?

Explain in detail-Why does coffee taste sour?

Before going to an unfamiliar coffee shop in a planned way, I usually search the Internet for information and comments. I wanted to get a general idea of the quality of the coffee in this shop. Most of the comments that can be seen are about the environment and service, and there are few direct comments on coffee. More coffee is not bad, coffee is generally scrawled. Flipping through the comments of Meituan and Dianping, they all tried their best to express their comments to the Institute.

2015-11-16
Why does the basic knowledge of coffee emphasize freshly ground coffee?

Why does the basic knowledge of coffee emphasize freshly ground coffee?

Why emphasize freshly ground coffee? When you smell the fragrance of coffee powder, it shows that it is deteriorating and the essence of coffee is decreasing. If the diameter of the coffee powder is doubled, the volume of a single particle is reduced by 1 × 8, and the surface area of the corresponding total coffee powder is doubled. After the coffee bean is ground into coffee powder, its surface area increases exponentially and is in contact with the air.

2014-11-22
What is the reason why some coffee tastes sour?

What is the reason why some coffee tastes sour?

Whether coffee tastes sour or not is mostly due to the variety of coffee, some of which have high acidity, such as Kenya, Mocha, Colombia, Guatemala and Costa Rica. The degree of roasting is also related to the acidity of coffee. Usually, lightly fried coffee beans also contain organic ingredients.

2015-03-06
Revealing the reason why elephant shit coffee tastes so good

Revealing the reason why elephant shit coffee tastes so good

Elephant coffee is actually coffee beans that are digested and excreted in stool after being swallowed by elephants. Studies have shown that enzymes in the elephant's digestive system can digest the protein of coffee beans, according to the Anattara Hotel in Thailand. Because protein makes coffee bitter, the less protein, the less bitter coffee and the smoother taste, which is why elephant shit coffee tastes good.

2015-06-20
Coffee basics: why use a coffee powder press

Coffee basics: why use a coffee powder press

We 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, not from the thickest ground

2015-07-24
Coffee basics: why use a coffee powder press

Coffee basics: why use a coffee powder press

We 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, not from the thickest ground

2015-09-14
Coffee basics: why use a coffee powder press

Coffee basics: why use a coffee powder press

We 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, not from the thickest ground

2015-10-23
Espresso knowledge learning, why coffee powder should be compacted?

Espresso knowledge learning, why coffee powder should be compacted?

The reason for compacting the coffee powder is that when using an Italian coffee machine, the hot water brewed has about 9 atmospheric pressure, which is very stressful. When the water penetrates the coffee cake, the water is inert. What is inertia, that is, water will penetrate through the weakest part of the coffee cake, not from the thickest place. So, if it's not compacted and flattened, the coffee

2014-09-02
Why is it easier to drink coffee and not sleep?

Why is it easier to drink coffee and not sleep?

Many people have the experience of not sleeping because of high spirits after drinking coffee. This is because there is a conductive substance called adenosine in the body, which can control nerve activity, produce respiratory slowdown, mood reduction, acid secretion reduction and diuretic effects. Caffeine, on the other hand, fakes adenosine, making the body think that the effects of adenosine have occurred, leaving you feeling refreshed and stomach acid increased.

2015-04-03
Why use a coffee powder press? Coffee common sense

Why use a coffee powder press? Coffee common sense

We 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, not from the thickest ground

2015-06-06
Why can't cappuccino be made in a siphon pot?

Why can't cappuccino be made in a siphon pot?

Cappuccino is a fancy coffee with a rich taste, with the sweetness of milk and the mellowness of coffee, thanks to espresso extracted by an Italian coffee machine, paired with milk and milk bubbles. A little more chocolate is mocha coffee. On the other hand, the coffee extracted by the siphon pot is relatively thin, which is more suitable for extracting single coffee, and it is best to experience single coffee without sugar or milk.

2015-03-30
Why can't cappuccino be made in a siphon pot?

Why can't cappuccino be made in a siphon pot?

Cappuccino is a fancy coffee with a rich taste, with the sweetness of milk and the mellowness of coffee, thanks to espresso extracted by an Italian coffee machine, paired with milk and milk bubbles. A little more chocolate is mocha coffee. On the other hand, the coffee extracted by the siphon pot is relatively thin, which is more suitable for extracting single coffee, and it is best to experience single coffee without sugar or milk.

2015-05-19
Barista training basics Why to use Coffee Powder Press

Barista training basics Why to use Coffee Powder Press

Baristas all know that when using an espresso machine, the hot water brewed has about 9 atmospheric pressure (of course, this is not a fixed value, there are 12 atmospheric pressure or higher), 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, not from the thickest

2014-12-30
Why use a coffee powder press?

Why use a coffee powder press?

Baristas all know that when using an espresso machine, the hot water brewed has about 9 atmospheric pressure (of course, this is not a fixed value, there are 12 atmospheric pressure or higher), 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, not from the thickest

2015-10-15
Why do you want to go big after drinking a cup of coffee?

Why do you want to go big after drinking a cup of coffee?

I don't know if you have ever had this awkward experience: every time I finish a cup of coffee, I want to, um, poop. It is said that three out of ten coffee drinkers will have this experience. In the past, scientists used to think that the culprit was caffeine's laxative effect, but they later found that decaf coffee would have the same effect, which means that the culprit is very likely.

2015-08-25
Fine coffee learn why pure coffee is bitter.

Fine coffee learn why pure coffee is bitter.

Thomas Hoffman of the University of Science and Technology in Munich, Germany, and his colleagues broke up with the brewed coffee again. After operating mass spectrometer analysis, Hoffman dissected one of its molecules, chlorogenic acid lactone, which is the differentiation product of chlorogenic acid (found in almost all plants). Hoffman's team then equipped a series of divergent coffees and measured them separately.

2014-10-13
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