For example, at high altitude, Arabica coffee grows best and its flavor is much more refined than other coffees. The caffeine content in this coffee only accounts for 1% of the total weight of coffee.
Coffee beans contain about 100 different substances, including caffeine, tannic acid, oil and nitrogen compounds. Every100g of instant coffee contains 44 ~100g of caffeine; Every 100g of brewed coffee contains 64 ~ 124mg of caffeine.
Coffee is a stimulant and has many effects on human body. It can induce diuresis, stimulate the central nervous system and respiratory system, dilate blood vessels, accelerate the heartbeat, enhance the strength of striated muscles and relieve brain and muscle fatigue.
Extended data:
Not suitable for people who drink coffee
1, suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases-drinking coffee for a long time or in large quantities can cause cardiovascular diseases.
2, elderly women-coffee will reduce calcium, causing osteoporosis. After menopause, women need to supplement ten times as much calcium every day.
3, stomach patients-drinking too much coffee will lead to stomach problems.
4, pregnant women-drinking too much coffee will lead to fetal malformation or miscarriage.
5, vitamin B 1 deficiency-Vitamin B 1 can maintain the balance and stability of the nervous system, and coffee has a destructive effect on it.
6, cancer patients-excessive intake of caffeine causes cancer to normal people.
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