什么？Drinking too much coffee can also be harmful？

Coffee, the gentleman who is popular all over the world, has a deep and fascinating story and mystery。It originated in Africa, popular in Europe and the United States, has become a global popular drink。Its footprints all over the world, after the baptism of the long river of history, coffee is not only a drink, but also a culture, a mood。

People like coffee for a variety of reasons。For many people, coffee is a morning wakeup call, giving them a boost to work and school。It has the effect of refreshing the mind, like a cup of sweet water in a tired life。In addition, coffee also has antioxidant effects, which can help people fight aging and disease。

However, drinking too much coffee may be doing some unexpected harm。

1, long-term coffee will stain your teeth

Famous drinks like coffee, tea, red wine and cola all contain a substance called tannin, which is dark brown in color。If it is applied to the teeth for a long time, it will penetrate the inside of the teeth and cause the teeth to turn yellow。

2, drinking coffee may lead to calcium loss

Three components of coffee beans are associated with the loss or retention of calcium: potassium, oxalic acid, and caffeine。The theory is that these things cause the body to lose calcium。

3, instant coffee contains more sugar is also a big risk

Most instant coffee contains a lot of artificial flavor and sugar and other chemical components to stimulate the drinkers dependence and addiction, regular drinking will also increase the risk of obesity。

4. Some people are sensitive to caffeine

It is the kind of people who drink nothing and drink themselves will have a headache, palpitations, stomach pain, uncomfortable, uncomfortable and want to be hugged。

In order to better enjoy the pleasure brought by coffee, we should learn to drink it correctly:

To control your daily coffee intake, adults should consume no more than 400 milligrams of coffee per day, which is equivalent to four 8-ounce cups。

Select high-quality coffee beans for roasting and grinding to obtain better taste and flavor。

Also pay attention to the temperature and time of the water when brewing coffee to ensure that the flavor of the coffee is fully released。

Avoid drinking coffee at night or before going to bed to avoid affecting sleep quality。

In conclusion, moderate coffee consumption is fine for most people, but please note that teenagers, gastrointestinal disorders, people with high blood pressure and people with coffee allergies should not drink coffee。

Good water with coffee, it is recommended to use the purified water filtered by reverse osmosis RO water purifier to brew coffee, water through layers of filtration, rust, sediment, bacteria and other harmful substances are filtered, coffee not only tastes more sweet and delicious, but also the mouth remains fragrant, leaving people with endless aftertaste。