Moderate caffeine can accelerate metabolism, promote digestion, improve constipation and rough skin. About caffeine can accelerate metabolism, there is a saying that coffee can accelerate the burning of calories and achieve the effect of losing weight.
Basically, the theory is correct, but this kind of calorie burning won't make you lose much weight. If sugar and creamer are added to coffee, the calculation of calories is even more inconsistent with the principle of losing weight.
Around the world, people like drinking coffee more and more. The ensuing "coffee culture" is full of every moment of life. Whether at home, in the office or in various social occasions, people are enjoying coffee, and coffee is gradually linked with fashion and modern life.
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Tips for choosing coffee
No matter what kind of coffee, freshness is an important factor affecting the quality. When buying, grab one or two coffee beans and chew them in your mouth. If it is crisp and intact, it means that the coffee beans are not wet, and the coffee beans with fragrant lips and teeth are top grade, but it is best to pinch them by hand to see if they feel solid. Never buy empty coffee.
Freshly fried coffee beans are not suitable for immediate drinking. Generally speaking, the best drinking period of coffee is one week after frying, when the coffee is freshest and has the best aroma and taste.
In addition, the taste of coffee beans is another consideration. Experts choose coffee beans, but not necessarily according to the size of the particles. Coffee beans may vary in size in appearance. For example, it is normal for beans in Ethiopia to have different characteristics.
Second, color. It is normal that dried beans will have different colors whether they are raw or cooked. Don't read my humble opinion in books or materials one-sidedly, generalize all coffee beans. Relatively speaking, medium-deep roasted coffee beans are easier to produce oil than lightly roasted coffee beans, while lightly roasted coffee beans have no oil or little oil. In a word, when buying coffee, we should pay attention to its freshness, aroma and bad taste.
Reference source Baidu Encyclopedia-Coffee