Coffee Common Sense 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, will emit about 40 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.
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Coffee cups introduce Espresso cups.
Espresso cups are generally made of porcelain cups with thicker walls, mainly for heat preservation. The bottom is sometimes made into a convex shape similar to the bottom of a red wine bottle so that a small amount of powder in the coffee will precipitate at the bottom of the cup without being drunk together. The handle of the cup is used for pinching, not for fingers to pass through, so the ring will be very small or even have no eyes to pierce.
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Coffee encyclopedia talk about the types of boutique coffee
Many varieties of coffee served by coffee shops have a variety of flavors, such as chocolate, wine, mint, cloves, lemon juice, cream, cream, etc., and people of different nationalities have different tastes of coffee. Here are some common types of coffee: black coffee (black coffee): also known as black coffee, commonly known as fast coffee in Hong Kong-coffee made directly from coffee beans, without milk, sugar, etc.
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