How to taste the taste of a good fancy coffee?

Coffee is one of the three major drinks in the world, and it is also people's favorite drink in their spare time. Even if you don't like coffee, you have to understand these basic knowledge. No matter which coffee shop you go to, you can see some kinds of coffee, such as American style, mocha, Cabo and so on, and these coffees are made from espresso Espresso, all of which are born on it. So how to judge a good fancy coffee? The key lies in the taste, contained in the mouth in addition to the natural aroma of coffee, there is no other feeling that affects its flavor, then this is a good fancy coffee. ★ is scorched. Scorching is inevitable in the field of traditional Japanese deep-roasting, but high-quality Japanese deep-roasted coffee will still well control the overall proportion of burnt flavor in the coffee taste, and more high-quality flavor will make tasters feel happy. But today, with medium and shallow baking as the mainstream, scorched paste means failure in baking or extraction. ★ is astringent. Astringent originally everyone defaulted to be inferior taste. The astringency in coffee comes from several aspects: coffee bean quality defects, coffee roasting defects, coffee extraction defects will lead to astringency. ★ is bitter. Good coffee is not bitterless, but bitterness accounts for only a small proportion of the coffee taste. And will not bring you negative feelings, it is easy to be coffee's original high-quality flavor synthesis. The coffee in some coffee shops will give people an extremely bitter feeling, but some people just like this kind of refreshing bitterness. ★ hemp. Hemp is a high quality performance in Sichuan cuisine, but it is a typical derogatory term in coffee. Hemp in coffee is either caused by underbaked beans or due to insufficient or excessive extraction. As long as there is hemp in the coffee, then this is definitely not a qualified cup of coffee. ★ is salty. Salty is a less obvious flavor in coffee defects, and most of the time it is difficult to find in coffee. My understanding is that coffee is qualified as long as the amount of salt is not more than I can feel at will, except those found by nitpicking.