The rich ingredients and brewing methods of coffee

Coffee is rich in ingredients and brewing methods, when it comes to coffee is familiar to us, and for us coffee drinking is also favored, for many people are very good, not only leisure drinks, but also in today's coffee reference is more extensive, there is a refreshing effect, the following small series to introduce the ingredients of coffee, the impact of drinking coffee on the body and some of the things that should be paid attention to when purchasing.

Caffeine, which has a particularly bitter taste, stimulates the central nervous system, heart and respiratory system. Moderate caffeine can also reduce muscle fatigue and promote digestive secretion. Because it promotes kidney function, it has a diuretic effect and helps the body expel excess sodium ions from the body. Too much caffeine can lead to caffeine poisoning.

Tannin acid, after boiling tannins will decompose into pyrochloric acid, so brewing too long coffee taste will deteriorate.

Fats, the most important of which are acidic fats and volatile fats.

Acidic fats, or fats that contain acids, vary in strength depending on the type of coffee.

Volatile fat, the main source of coffee aroma, is a substance that emits about forty aromas.

Protein, the main source of calories, is not a high percentage. Coffee powder protein in brewing coffee, most will not dissolve out, so intake is limited.

Sugar, coffee beans contain about 8% sugar, after roasting, most of the sugar will be converted to caramel, so that coffee brown, and combined with tannins to produce sweet taste.

Fibers, fibers of raw beans that are carbonized when roasted, combine with caramel to form the hue of coffee.

Minerals, containing a small amount of lime, iron, phosphorus, sodium carbonate and so on.