coffee time
What is "black coffee"?
Black coffee is a general term for a large class of coffee, which refers to a pure black coffee beverage composed of coffee or coffee and water without adding any other ingredients.
Black coffee brings the original feeling of tasting coffee, which combines the sweet, sweet and bitter characteristics of coffee.
"Black coffee" includes
Espresso
Café Americano
cold coffee
Icdrip coffee ice drops
espresso
Espresso refers to the extremely concentrated coffee essence that is quickly taken out of the espresso machine under high steam pressure, with a total volume of about 30-45cc, so it is called "espresso".
Espresso originated from Italian coffee culture and is a kind of coffee widely loved by Italians. In Italian, espresso means "fast" and "pressure".
Café Americano
American/Americano refers to black coffee made with drip coffee pot, or made by adding a lot of water to Italian concentrate.
"American" refers to the drip coffee made by "American drip filter".
"American coffee" refers to coffee with espresso first and then water.
Cold crisp coffee
Cold brewing refers to the coffee made by soaking ground coffee powder in ice water below room temperature for a long time at low temperature, and then extracting and filtering it by professional instruments.
The production process is long, which usually takes 12-24 hours. If the mellow degree is high, the time can be extended to 2448 hours.
Iced Coffee
Iced coffee, also called iced coffee, is extracted drop by drop by using the ice on the upper layer of iced coffee pot. The temperature of ice water is generally 0-4 degrees Celsius.
This extraction process is very slow and often takes several hours, so the price of iced coffee is more expensive.
The benefits of drinking black coffee
0 1 promote metabolism
Caffeine in black coffee balls can promote the migration of dopamine and the increase of norepinephrine in brain tissue. This will accelerate the metabolism of the human body and increase 10% or so, thus promoting weight loss.
It makes people feel happy.
Caffeine in black coffee is fat-soluble and water-soluble, so it can easily pass through the blood-brain barrier. Caffeine can promote the production of adrenaline and increase the levels of neurotransmitters such as dopamine, 5- photochromamine and ethylparaben, thus improving mood.
How many drinks a day is appropriate?
Generally speaking, it is reasonable for a healthy adult to consume 400 milligrams of caffeine every day.
A cup of coffee 120cc (approximately equal to 123ml) contains 80- 120mg of caffeine. It is reasonable to drink 3-4 cups a day, but it also varies from person to person.