1, coffee itself is bitter. If you want to drink coffee without bitterness, the most direct way is to add sugar to it, which is also the most commonly used method. After all, there is sugar at home.

2. Another way to drink coffee without bitterness is to add milk partner to coffee, which can not only increase the sweetness, but also enhance the aroma of coffee.

3, drinking coffee is not bitter, you can also add a little salt to coffee. Adding salt can not reduce the bitterness of coffee, but it will change the taste of coffee, which is another feeling.

If coffee is not bitter, you can adjust the ratio of coffee to water. A small amount of watery coffee will not be so bitter.

The efficacy and function of coffee;

1. Coffee contains some nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. But also free fatty acids, caffeine, tannic acid and so on.

2. Coffee is good for the skin. Coffee contains some nutrients that the human body lacks, and these nutrients can promote metabolic function and activate digestive organs, which has a great effect on constipation. Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight.

3, coffee has the effect of hangover. If you feel uncomfortable after drinking too much at ordinary times, you might as well drink some coffee, because drinking coffee after drinking will quickly oxidize and decompose acetaldehyde converted from alcohol into water and carbon dioxide and excrete it.

4, coffee can eliminate fatigue. Most people know that coffee is actually a gratitude for eliminating fatigue, so in order to eliminate fatigue, it is necessary to supplement nutrition, rest and sleep, and promote metabolism, and coffee has these functions.

5. Three cups of coffee a day can prevent gallstones. For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Recently, researchers at Harvard University found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.

6. Drinking coffee regularly can prevent radiation injury. Radiation hazards, especially electrical radiation, have become the prominent pollution at present. Baba's Indian atomic researchers reached this conclusion in mouse experiments and said it can be applied to humans.

7. The health function of coffee. Coffee has the functions of resisting oxidation, protecting the heart, strengthening bones and muscles, benefiting the waist and knees, stimulating appetite, promoting eating, reducing fat and digestion, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and relieving spasm.

8. The influence of coffee on mood. Experiments show that the average person absorbs 300 mg (about 3 cups of brewed coffee) every day, which will have a good influence on a person's alertness and mood.