The main ingredients of coffee
Caffeine: it has a particularly strong bitter taste and stimulates the central nervous system, heart and respiratory system. Appropriate amount of caffeine can also reduce muscle fatigue and promote digestive juice secretion. Because it promotes kidney function, it is diuretic and helps the body to expel excess sodium ions from the body. But eating too much can lead to caffeine poisoning.
Tannic acid: the boiled tannic acid will decompose into pyrouric acid, so the coffee that has been brewed for too long will taste worse.
Fat: the most important ones are acid fat and volatile fat.
Acidic fat: that is, fat contains acid, its strength will vary according to the type of coffee.
Volatile fat: is the main source of coffee aroma, it is a kind of aroma will emit about 40 kinds of aromatic substances.
Protein: the main source of calories, the proportion is not high. Most of the protein in coffee powder will not dissolve out when brewing coffee, so the intake is limited.
Sugar: coffee beans contain about 8% sugar. After baking, most of the sugars are converted to caramel, which browns the coffee and combines with tannins to produce sweetness.
Fiber: the fiber of raw beans will be carbonized after baking and combine with caramel to form the hue of coffee.
Minerals: contains a small amount of lime, iron, phosphorus, sodium carbonate and so on.
Sugar: about the amount of sugar contained in raw coffee beans
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How much do you know about coffee's innocence? Not only contains caffeine.
In the past, people didn't pay much attention to the complex chemicals in coffee when they enjoyed it. People are mainly interested in the refreshing effect of coffee, rather than the health effects of drinking coffee regularly. But nowadays, food chemistry is becoming more and more important to our lives, because a series of serious diseases are related to our diet, and it is estimated that 3 percent of deaths in the United States are related to this. These.
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Is it right to drink coffee while it is hot?
Some people say that the best time to drink hot coffee is 85 degrees Celsius, which is not good when it is cold. Santos coffee tells you that, in fact, if it is a good cup of coffee, the taste should be the same when the temperature is high and low, which is why the appraiser who tests the coffee will evaluate the whole process of coffee from hot to cold, a cup of good coffee, cool it.
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