In order to taste good coffee, the point to know with 3 points of "production area" "roasting" "extraction"

Coffee people drink at various occasions of life, such as start of the day, work break time, and study time, tastes change variously depending on how to choose beans, how to roast, how to brew, It is a really deep drink. Because there are so many elements, it is not easy to find a good coffee that really suits me, but I will explain the elements that are considered important among them, and a movie will tell you the hint of how to choose coffeeTEDofYouTube channelIt is published in.

Everything you've ever wanted to know about coffee | Chandler Graf | TEDxACU - YouTube


Coffee beans are seeds that are removed by removing skin and fruits from coffee cherries grown in coffee grounds.


There are two main types of "refining" methods to remove beans from coffee cherries. one"WashedIn a method called so-called "water washing method", a coffee cherry is put in a tank containing water, washed lightly and then the outer skin is removed with a pulp remover. And the other, "natural(Non-rinsing type) "which is called harvested coffee cherry as it is, dry it for about 30 days in the sun, then remove the outer skin and pulp. By entering this drying process, the aging of beans will proceed and deep flavor such as natural bitterness and creaminess will be made.


The taste of coffee changes with the refining method described above, but more importantly it is the production area. There are many famous places of coffee in the world, but hereIndonesiaWhenEthiopiaWe will take up. The characteristic of Indonesia is that there is no high mountain and coffee is cultivated in lowland. A representative who is using beans in Indonesia is Starbucks, almost all the beans are grown in lowlands of Indonesia. Meanwhile, Ethiopia is also a country without high mountains, but among them coffee is grown in highlands.


The difference that arises due to the difference in altitude cultivated, that is, the density of air is different. In the case of trees growing by absorbing carbon dioxide, the density of air has a great influence on the growth rate. In Indonesia where cultivation is done in lowlands, coffee can be harvested more times. On the other hand, there is a certain tendency to become a refreshing taste without habit, because there is no certain "predicament" during growth.


On the other hand, in Ethiopia where highland cultivation is carried out, since the air is thin, coffee trees grow and produce fruit and have many lactic acid inside the fruit. This lactic acid eventually adds the individuality of taste such as creamy, bitter, sour and fruity of coffee. Also, although it is not mentioned in movies, it is said that the temperature difference in day and night at highlands also affects the taste of coffee.


For these reasons, if you want to drink coffee which is clear and less habitable, you can choose low-quality beans such as Indonesia, if you want to drink coffee, bitter, sour tasting coffee in reverse, you can choose highland cultivated beans I understand the trend that it is good. Besides Ethiopia, coffee in African countries such as Kenya is mostly cultivated in highlands.


An important process that determines the taste of coffee as much as the production area,roast(Roasting) ". There are various roasting methods such as "light roast", "dark roast" and "city roast", and you can adjust the taste by adjusting the time for roasting beans at the roaster.


When roasting coffee beans, reducing sugars and amino compounds in beans change by heatingMaillard reactionOr "brown reaction" will occur. Roasting becomes deeper enough to make this reaction longer, and the taste becomes deeper. On the other hand, however, sugar and amino compounds are consumed by roasting, so that the original personality of beans themselves will be lost. Therefore, it is said that it is deep inside of roasting to find a point that balances the characteristics of the beans and the depth of the taste well.


Things that can not be avoided in talking about coffee, it is "caffeine"is. Caffeine has the effect of inhibiting the action of "adenosine" which is a substance that promotes drowsiness.


Since the chemical composition of caffeine is similar to that of adenosine, instead of adenosineAdenosine receptorYou can antagonize. On the other hand, caffeine does not work to cause a sleepy chemical reaction like adenosine. Therefore, even if it is supposed to be drowsy, even if it is supposed to be drowsy, you will be able to cheat drowsiness by taking caffeine. This is because it is said that "caffeine will be a drowsiness".


In other words, it is actually not the correct answer that sometimes is said to be "cheerful after drinking coffee", in reality it is "to misunderstand that the body is not tired after drinking coffee" in the body That is the real reaction that is happening.


Finally, one of the important elements that determines the taste of coffee is "extraction of coffee" or "BlueingLet's look at the process called. There are several ways to brew. One of them is to use this cylindrical container "French pressWhat is called.


In the French press type, put the ground beans and hot water in the container, and set the extraction time of about 5 minutes. It is said that all the flavor of the coffee contained in the beans will be extracted into hot water, so that all the elements can be tasted. Conversely, in the case of coffee beans with strong individuality, there are also cases where their personality is too emphasized.


Another way is to put a filter on the container, put the beans and pour hot water from above, a method called "Poor over". in Japan"Hand dripThis is the way that common coffee is brewed.


In this method, the ingredients contained in the beans dissolve into hot water only during the time that hot water flows down from the top down. Therefore, in the case of hand-drip type, only the most elutable ingredients in beans are extracted as coffee. Therefore, while the hand drip type can enjoy the refreshing taste as compared with the French press type, the "body feeling" of the beans themselves is characterized not so strongly.


As you can see, the taste of coffee is determined by so many factors. But this is also the cause of getting into the situation that "I do not know what kind of bean to order or how to order".


However, the two most basic factors that can finally taste coffee are "Espresso" and "Steam Milk". In a full-fledged coffee shop, an espresso machine that extracts coffee with high temperature and high pressure steam is mostly placed, so make espresso brewed with that machine "straight", with espresso and steam milk with You can feel the personality of coffee best by tasting it with either 'Cappuccino' with the same ratio of foam milk, or 'Latte' containing 4 to 5 times steam milk in espresso.