What is the effect of American coffee? is there any harm in drinking coffee for a long time? The production standard of American coffee

First of all, let's understand what American coffee is. American coffee is a kind of espresso. We usually choose medium-to-deep-roasted coffee beans, let the hot water pass through the ground coffee powder under the pressure of the Italian coffee machine and extract espresso. Normally, a cup of American coffee is made from one or two espresso and diluted with hot water.

So where did American coffee come from?

One theory is that American coffee is rumored to come from American soldiers in Italy during World War II and diluted with boiled water because they are not used to the strength of espresso. This caused disdain in Italy, calling it Americano, Yankee coffee. So there is American coffee.

So what are the advantages and disadvantages of drinking American coffee?

The benefits of drinking coffee

Caffeine can stimulate the central nervous system and muscles, so it can cheer up, enhance thinking ability, and restore muscle fatigue. Acting on the cardiovascular system, it can improve heart function, dilate blood vessels and promote blood circulation. For the gastrointestinal system, it can help digestion and help decompose fat. 1. It is true that caffeine can help you lose weight and accelerate the decomposition of fat, but at the same time, you have to rely on muscle exercise to convert the excess fatty acids into heat energy consumption. Without matching exercise, the excess fatty acids flow back down the bloodstream and re-accumulate fat. So after drinking coffee, you need to be active at the same time in order to play a real weight loss effect! Coffee itself has calories, but not much. The main calories are the cream and sugar you add when you drink coffee. two。 Antioxidant capacity a few days ago, a research report pointed out that coffee contains four times more antioxidants than tea, more resistant to cardiovascular disease, and coffee itself is also in line with the principle of antioxidants, and the color (dark) is bitter. Each coffee contains different antioxidants depending on the way it is brewed. For example, American coffee contains the least antioxidants, while Espresso contains the most antioxidants. After the addition of cream, coffee will not affect its antioxidant effect. 3. Foreign reports on improving dry eyes point out that coffee drinkers are significantly less likely to suffer from dry eyes than non-coffee drinkers. This is mainly related to the purine ingredients in coffee (purine-containing eye drops that stimulate glands to secrete fluid and have some protective effect on the eyes). This is of course good news for computer users who love coffee, but it should be noted that coffee itself has a diuretic effect, even if some of its ingredients have a protective effect, but for people who already suffer from xerophthalmia, and those who take any drugs containing diuretics, caffeinated beverages must be prohibited so as not to aggravate the loss of water in the body. 4. It can relieve the headache caused by a good night's sleep, or the pain caused by vasoconstriction on the temple side. the pain caused by these non-organic factors can be relieved with coffee, but it must be drunk in the morning or noon (note: prohibited from afternoon to night). 5. The amount of coffee is good for the body, but you can't drink more than 2 cups a day. For people who are prone to tension and anxiety, drinking too much may be harmful. 6. When drinking coffee, it is best to drink coffee after breakfast and lunch, because it can promote gastrointestinal peristalsis, help digestion, break down high-calorie and high-fat foods eaten, and will not cause irritation to the stomach like drinking coffee on an empty stomach. It's best not to drink coffee after dinner, for fear it will affect your sleep. If you want to stay up all night by drinking coffee, you may drink too much without knowing it, which is bad for your health.

What's the harm of that?

For a specific group of people, such as coronary heart disease, hypertension patients, do not often drink coffee. Because they drink too much coffee, these patients will have elevated blood pressure, tachycardia, restlessness, sweating and so on.

The proportion of traditional American coffee is 1:8, double espresso (60ml) mixed with 480ml of water, can be adjusted according to the number of cups produced in the store, about 1:7 or 1:8.