Why is Japanese coffee so bitter? How do you extract the sweetness of deep-roasted coffee beans?

If you are a friend born before the millennium, the first impression of black coffee is probably the same bitter taste, and the only coffee that is not bitter is Nestle 2 in 1.

This uniform bitter coffee is actually caused by the dark roast coffee beans popular in the last century. It is very different from the light roasted coffee beans with floral and fruity flavor that are now promoted. Why would anyone like coffee that bitter? If you are lucky enough to meet an uncle who likes this bitter coffee, try to get the answer from him. "Is this coffee bitter?" "Bitter!" "Why do you like this coffee?" "I don't know. Maybe I'm used to it." " I remember the first time. I was attracted by that fragrance. It tasted bitter, but it was very pleasant. It's hard to describe…I got used to it over time." Uncle's words actually explained why one group of people liked to drink strong and bitter black coffee. It was the memory of the times. At that time, coffee taste was defined as "coffee flavor", bitter, smooth, strong. People who like this taste naturally become fans of coffee. Those who don't like coffee naturally don't have a relationship with coffee.

Another reason is that coffee is used as a refreshing functional drink. It is needed and relied on many times. In order to play a refreshing role, it is not necessary to pay a little taste burden. Besides historical reasons, Front Street continues to talk about the appeal of dark roast coffee. Coffee Aroma-The inviting aroma of coffee originally refers to the aroma emitted by this bitter, dark roast coffee. These aromas are complex aromas of nuts, caramel, roasted chestnuts, cream and spices. It is difficult to resist the temptation of this aroma. A lot of friends are slowly falling into coffee from the aroma.

- Full-bodied taste-Dark roast coffee has a taste experience that light roast coffee cannot match. There are still many friends who love Blue Mountain and Mandrine coffee, one of the big reasons is that it can provide a mellowness and volume that other coffees do not have. Let your mouth and tongue feel the coffee is extremely smooth and full. - Sweet-yes, even dark roast coffee has a unique sweetness, which is bitter sweet. Also take the example of deep-roasted mantning coffee, many people can easily perceive the nut bitterness and cocoa bitterness in coffee. If you carefully taste a product, you can feel the sweetness of caramel and maltose, which is what Uncle said "comfortable bitterness". After swallowing the coffee, the bitterness dissipates immediately, and the bitterness comes to an end. "Back to Gan" is another important reason for drinking bitter coffee, and it is also difficult to reproduce the characteristics of shallow roasted coffee.