Coffee knowledge: what does black coffee mean? What's the difference between black and black coffee?

Brief introduction

Black coffee refers to drinking coffee without adding any ingredients to the coffee. Generally, when drinking coffee, sugar, sugar, milk, coffee companion and other ingredients will be added in advance, while black coffee will be drunk directly after brewing, without any ingredients.

This kind of coffee is not popular with most people in China. Because of the variety, origin and baking technology of coffee beans, coffee will have four flavors: sour, sweet, bitter and salty. Good coffee beans and good roasting techniques will balance the various flavors of coffee, so a good cup of coffee is not just the bitterness that people used to feel. In addition, there are a variety of rich aromas depending on the variety, producing area and baking degree, such as the red wine aroma of Kenyan coffee, the creamy cocoa flavor of Costa Rican coffee, and the fruit and flower aroma of Ethiopian coffee.

Black coffee combines the characteristics of sweet, sour and bitter coffee, it is primitive and rough, profound and intriguing. As the instant coffee and coffee powder produced by most manufacturers can not guarantee the production of 100% pure coffee beans, black coffee is usually made directly from high-quality coffee beans, through a coffee machine to perform a series of steps such as grinding, pressing and brewing. Brewed coffee can be defined as black coffee only if no ingredients are added for seasoning except coffee beans and hot water.

Black coffee is non-milk, unsweetened coffee, also called plain coffee. There is no difference between the two.

Add: there are three ways to make black coffee, so there are three different types of coffee pots: traditional follicle type, siphon type and electric type.

The traditional follicle style is the most primitive and the simplest way to do it. The coffee pot is composed of a funnel, a piece of filter paper and a container below, but it requires high manual craftsmanship. If you handle it properly, you can make delicious coffee with a mellow taste. The price of this kind of pot is so cheap that you can buy it for more than ten yuan. The follicular coffee pot is suitable for coffee tasters with stable handle and keen taste. When buying follicular coffee utensils, pay attention to whether it is three holes or one hole, which is very important. The dripping speed of three holes is faster, the extraction time is short, the coffee is lighter, and the opposite is true for one hole.

Siphon is based on the principle of siphon. Under the combustion of alcohol, when the water temperature in the lower container reaches 92 ℃, the water is sucked into the upper container with coffee powder. After soaking and stirring, the coffee is returned. Due to the addition of a mixing process, this method of black coffee has a strong flavor, but because it does not need to rely on manual technology, the practice is relatively simple.

The price of an electric coffee maker is comparable to that of a siphon coffee maker, which boils the water and soaks it through electricity. It is the easiest way to make black coffee, but it tastes a little worse because it is made from boiling water. In contrast, electric coffee pots are more suitable for young people who are petty bourgeoisie and afraid of trouble.

Although the traditional follicle style is the simplest, it is the coffee pot that can best brew the original flavor of coffee. In the production process, it is necessary to accurately grasp the water temperature, water flow size and trajectory. A uniform flow and a round track can make the coffee taste natural, so the choice of the kettle and the control of pouring water with both hands are very important. When the water comes into contact with the coffee, it should be kept round as far as possible, from the outside to the inside, from the inside to the outside, so that the coffee is in full contact with the current. At the same time, the water temperature of 92 ℃ can make the coffee fragrant, mellow, sweet, sour, bitter uniform and strong, too high water temperature will scald the coffee, make the taste sour and astringent; low, it is difficult to brew the coffee strong.

Efficacy

Black coffee is more beneficial to urine. Black coffee can also promote cardiovascular circulation. For women, black coffee also has a cosmetic effect. It can make you glowing and radiant by drinking it frequently. Hypotension patients drink a cup of black coffee every day to make themselves in better shape. In the process of brewing coffee at high temperatures, it also produces an antioxidant compound that helps fight cancer, anti-aging and even cardiovascular disease, comparable to fruits and vegetables.

Black coffee has always been called a "health messenger". Its main effects on health are:

⒈ refreshing: caffeine stimulates the central nervous system to clear the mind, think well, focus on concentration, and improve work efficiency.

⒉ strong muscles and bones, waist and knees: caffeine can make muscles contract freely and improve motor function.

⒊ appetizer digestion: caffeine stimulates stomach and intestines to secrete gastric acid, which can promote intestinal peristalsis, help digestion, prevent gastroptosis, and quickly defecate.

⒋ Liqiao dehumidification: caffeine can promote kidney function, expel excess sodium ions from the body, increase urine output, and improve abdominal distension and edema.

⒌ activating blood circulation and removing blood stasis: linoleic acid contained in coffee has the effects of hemolysis, preventing thrombosis, enhancing vasoconstriction, relieving migraine and reducing the probability of middle wind.

⒍ calming the lungs and relieving asthma: caffeine suppresses the parasympathetic nerve and reduces the onset of asthma.

⒎ dryness, dampness and deodorization: caffeine contains tannins and has a strong adsorption capacity for taste. If your room has just been decorated, brew a pot of coffee indoors, the smell will be removed quickly.

⒏ weight loss effect: drinking coffee to lose weight will lose weight, the best time to take it is 30 minutes to 1 hour after lunch and before work, taste a strong cup of unsweetened black coffee, and with walking, can promote fat burning.

⒐ black coffee can effectively improve hypotension.