Coffee is one of the three most popular beverages in the world. The most common effect of drinking coffee is refreshing. In fact, coffee also has the benefits of anti-oxidation and heart protection, increasing appetite, helping digestion, activating the network and removing stasis. But not everyone can drink coffee, so the following is a detailed introduction to who can’t drink coffee? What are the pros and cons of drinking coffee? How to make ground coffee? How to buy instant coffee and other issues. The origins of coffee
Around the world, people are enjoying coffee more and more. The resulting “coffee culture” fills every moment of life. Whether at home, in the office, or in various social occasions, people are drinking coffee, and it is gradually associated with fashion and modern life.
The coffee tree is native to the highlands of southwestern Ethiopia in Africa. It is said that more than a thousand years ago, a shepherd became very excited after discovering that the sheep ate a plant, and then discovered coffee. It is also said that a coffee forest was accidentally burned by a wildfire, and the aroma of roasted coffee attracted the attention of surrounding residents.
Coffee Ingredients
Caffeine: Caffeine Coffee is the most well-known of all coffee ingredients. It belongs to a kind of phytoxanthin (animal muscle component), and its properties are the same as theobromine contained in cocoa and theophylline contained in green tea, and the percentage of reduction after baking is extremely small.
Tannins: After refining, tannins will turn into a light yellow powder that easily dissolves in water. When boiled, it will decompose to produce pyrogenic acid, which makes coffee more difficult. The taste gets worse.
Fat: The fat contained in coffee plays an extremely important role in the flavor. Volatile fat is the main source of coffee aroma.
Protein: Coffee is the main source of calories and does not account for much. Most of the protein in ground coffee will not dissolve when brewing coffee, so the intake is limited.
Sugar: Green coffee contains about 8% sugar, most of which is converted into caramel after roasting, browning the coffee, and interacting with tannins. Combined to produce sweetness.
Fiber: The fibrous fibers of green beans are carbonized after roasting. This carbon and sugar caramelization combine to create the coffee’s hue, but turn into powdered fibers. It will have a considerable impact on the flavor of coffee.
Minerals: There are lime, iron, sulfur, sodium carbonate, phosphorus, chlorine, silicon, etc., because the proportion is very small, it does not affect the flavor of coffee. All in all, it only brings a slight astringency.
The advantages and disadvantages of drinking coffee The benefits of drinking coffee
1. Helps lose weight
With muscle exercise, caffeine It can accelerate the decomposition of fat and convert excess fatty acids into heat energy for consumption. A cup of steaming coffee can promote blood circulation, accelerate the consumption of calories in the body, and effectively break down fat. Coffee itself does not have many calories, the main calorie is to add creamer and sugar when drinking coffee.
2. Antioxidant
Coffee contains 4 times more antioxidants than tea, which is more resistant to cardiovascular disease, and coffee itself also meets the Antioxidant principle, dark color and bitter taste.
3. Improve dry eyes
Coffee drinkers are significantly less likely to suffer from dry eyes than non-coffee drinkers. This is mainly related to the purine component in coffee (purine-containing eye drops, which stimulate the glands to secrete fluid, have a certain protective effect on the eyes).
4. Resolvable pain
Headache caused by not sleeping well all night, or pain caused by vasoconstriction on the temple side, these Pain caused by qualitative factors can be relieved with coffee.
What’s wrong with drinking coffee
1. Exacerbating high blood pressure
Caffeine is often compounded with other simple pain relievers because of its pain-relieving effect. However, taking large amounts over a long period of time, and if you have high blood pressure, will only make your condition worse.
2. Induce osteoporosis
Caffeine itself has a good diuretic effect, if you drink a lot of coffee for a long time, it is easy to cause bone loss , has a detrimental effect on the preservation of bone mass and, in women, may increase the threat of osteoporosis.
3. Stress when you’re nervous
Caffeine helps improve alertness, agility, memory, and concentration. But drinking more coffee than you’re accustomed to, can produce a stimulant similar to eating the same dose, which can cause jitters. So here I remind everyone not to drink too much coffee.
All coffee utensils coffee grinders
Coffee grinders mainly refer to coffee grinders, which are generally divided into hand grinders, small electric grinders, medium grinders, and top grinders Four kinds of machines. An ideal grinder requires less heat generation during grinding, uniform grinding particles, and almost no electrostatic fines.
Coffee Brewing Appliances
The appliances for brewing coffee, according to different flavors of coffee, mainly include hand-brewing pots, siphon pots, French press pots, Moka pots, American drip pots, Belgian pots, Royal pots, etc., among which the most commonly used are French coffee pots, Moka pots, drip coffee pots, and Italian coffee pots.
Coffee drinking utensils
Coffee drinking utensils mainly include coffee cup sets and coffee spoons, among which coffee cups are divided into three specifications: regular coffee cups 120ml~140ml, milk powder and sugar can be added; small coffee cups 60ml~ 80ml, you can drink it almost in one sip; the mug is more than 300ml, suitable for adding a lot of milk.
Other aids
There are also some aids in coffee making, such as stainless steel flower pots, milk frothers for making fancy coffee; bean measuring spoons, coffee pot grinder brushes, coffee presses Filters, coffee filters, filters, ceramic milk cans, sugar cans and other supporting utensils.
The difference between coffee powder and instant coffee 1. Different shapes
The most important difference between coffee beans and coffee powder is that they exist in different shapes, coffee beans are plants, and the fruits of coffee trees are particles after roasting The appearance is flat spherical, and coffee powder is a powdery substance obtained after coffee beans are ground and processed.
2. Different methods
Coffee powder can be directly used to brew coffee, and coffee beans must be ground when they want to brew coffee.
3. Different flavors
To enjoy the most complete coffee flavor, it is naturally the best way to keep the original shape of the coffee beans. After the coffee beans are ground into coffee powder, the flavor starts to lose a lot. In order to taste the best flavor of coffee as much as possible, it is recommended to buy only a week or two at a time.
How to choose instant coffee 1. Identify before brewing
Good quality instant coffee is brown to dark brown due to different varieties and processes, and the organization state is irregular particles of about 2 mm in size, with some inclusions Fine powder; inferior instant coffee, dark in color, some are iron black, and the organizational state has agglomeration and agglomeration due to moisture or other reasons.
2. Identification after brewing
High-quality instant coffee, completely dissolved, the soup is brown-red and bright, with a strong coffee aroma, after adding sugar, it has a palatable bitterness and sour taste, and the flavor is straight; inferior instant coffee , after dissolving, there is sediment at the bottom of the cup, the color of the soup is dark, the aroma is light and the taste is burnt, and the bitterness and sourness are strong after adding sugar, especially the aftertaste is hard.
3. Quality of coffee beans
The origin of coffee beans is relatively fixed. Generally, the country of origin of coffee beans will be marked on the packaging bag. Internationally, the coffee level is usually assessed by A and AA grades, and AA represents the best If there is no QS, it means that this product does not meet the food safety regulations.
How to make coffee? How to brew ground coffee
Use a filter press to brew coffee powder
1. Pour hot water into the filter The pressure pot is about 8 minutes full, let the glass bottle preheat, and pour out the hot water after about 2 minutes.
2. Pour ground coffee and hot water into the filter press pot, place the inner filter on the mouth of the pot, and allow the coffee powder to soak fully before filtering.
3. After about 2 to 3 minutes, press the inner filter down to the bottom of the cup.
4. If you like a cleaner and smoother taste, you can take another bottom pot, put the filter cup and folded filter paper, and then pour the coffee in the filter press pot into the filter.
How to brew coffee powder by hand
1. Take a bottom pot and put it on Strainer, pour a little hot water on the strainer, let the bottom pot preheat and keep warm.
2. Put the folded filter paper on the filter cup, and then pour a little hot water to let the filter paper and the filter cup adhere, and then pour out the hot water.
3. Pour ground coffee on the filter cup, tap the filter cup a few times with your hand to concentrate the coffee powder.
4. Pour hot water, first pour a little hot water in the center of the coffee powder, then pour the hot water clockwise along the coffee powder from the inside to the outside, and finally pour the hot water in a clockwise direction. Pour from outside to inside.
5. When pouring hot water, it is recommended to use a kettle with a slender spout. The water flow is thin and consistent, and it should be noted that the process cannot be interrupted.
6. When the coffee drips from the filter cup to the bottom pot, if the scale of the bottom pot drops to the required amount of water, the filter cup can be taken out from the bottom pot.
How to brew instant coffee
1. Direct brewing
This brewing method is aimed at 2-in-1 and 3-in-1 types of instant coffee. Because it has added sugar, coffee mate, creamer and other ingredients, the taste is already very full. Just one cup, pour the coffee powder, and add hot water for one packet at a time. If you like to drink thicker, it is recommended to add less water. The goal of instant coffee is to dissolve in water without extraction. Direct brewing is the easiest way.
2. Match it by yourself
Coffee + milk powder + sugar: If you like to drink milk, you can add a little milk powder. Coffee powder and milk powder 1:1 taste best. If you think plain coffee is too bitter and sour, you can add a little more sugar.
Coffee + fresh milk: You can also add a little fresh milk or condensed milk. But it doesn’t feel as obvious as adding milk powder.
Coffee + cocoa powder: This drink is really fragrant. It is recommended to buy cocoa powder with a strong flavor.
Coffee + a little bit of essence: This combination method can produce different aromas by adding a little bit. Coffee + fresh milk + vanilla flavor is a good taste, and the aroma and taste are good. Of course, these can be determined in combination with the ingredients you have on hand.
The right way to drink coffee
1. Don’t drink coffee after 2pm
Coffee gives us energy and keeps us awake when we’re tired. But caffeine also interferes with sleep, and poor sleep is sure to trigger all sorts of health problems. Therefore, it is not advisable to drink coffee after 2 pm.
2. Don’t add sugar to coffee
The fructose content in coffee cubes is very high, which may lead to various serious diseases such as obesity and diabetes .
3. Choose high-quality coffee
Well-known coffee brands will be more guaranteed in terms of quality. If economic conditions allow, it is best to choose Organic coffee.
4. Cinnamon can be added to coffee
Coffee with cinnamon tastes better and can lower glucose, cholesterol and triglycerides in diabetic patients.
5. Avoid artificial creamers
Low-fat artificial creamers contain ingredients that are harmful to the human body.
6. Add cocoa powder to coffee
Cocoa is rich in antioxidants, which can reduce the risk of heart disease. Unsweetened organic cocoa powder also adds flavor.
7. Use filter paper when brewing coffee
The diterpenoids generated in the process of brewing coffee will increase the cholesterol level in human blood. Brewing coffee with filter paper effectively removes all diterpenoids, while caffeine and antioxidants are not filtered out.
What should be paid attention to when drinking coffee and who is not suitable for drinking coffee
1. Children: Caffeine can stimulate the central nervous system of children, interfere with children’s memory, and cause children with ADHD.
2. Pregnant women: Drinking too much coffee will cause nausea, vomiting, headache, rapid heartbeat and other symptoms, as well as fetal malformation or miscarriage.
3. Older women: Coffee will reduce calcium and cause osteoporosis. After menopause, women need ten times the amount of calcium every day.
4. Frequent drinkers: Alcohol and caffeine both have excitatory and inhibitory effects, which can make the brain change from extreme excitement to extreme depression, and accelerate blood circulation, thereby aggravating the heart The burden also increases the burden of detoxification and detoxification of the liver.
5. Patients with stomach problems: Drinking too much coffee can cause stomach problems to worsen. I remind everyone that if you have stomach problems, try not to drink coffee.
6. People with high blood pressure, coronary heart disease, arteriosclerosis and other diseases: Long-term or a lot of coffee drinking can cause cardiovascular disease.
7. Vitamin B1 deficiency: Vitamin B1 can maintain the balance and stability of the nervous system, and coffee has a damaging effect on it.
8. Cancer patients: Excessive intake of caffeine has the risk of cancer in normal people.
Caffeine should not be eaten with coffee. Cautions
1. Do not overdo it: Drinking some coffee in moderation can have a refreshing effect, but excessive drinking can make people excited , Excessive excitement can even cause nervousness, and it should not exceed 2 cups a day.
2. Drinking the right time: It is best not to drink coffee in the afternoon and at night, otherwise it will easily affect sleep, especially for people with poor sleep quality, in the afternoon It is not recommended to drink coffee after 2 o’clock. You can drink some coffee in moderation after eating high-calorie and high-fat foods, which is conducive to promoting digestion.
3. Don’t drink on an empty stomach: Many white-collar workers have no time to eat breakfast, so they drink coffee on an empty stomach. However, this habit is very stimulating to the stomach. cause chronic gastritis.
4. Don’t drink it when you are nervous: Caffeine helps to improve alertness, sensitivity, and memory. Drinking coffee when you feel nervous can easily make people feel anxious. People who are unhealthy and easily feel anxious at ordinary times are not recommended to drink coffee, otherwise they are prone to sweating, palpitations, tinnitus and other discomforts.
