咖啡怎麼會有醬油味 Why does some coffee have a soy sauce taste?
咖啡的香氣世界太奧妙，曾有個客人在享受手沖咖啡時喝到醬油味！？哭笑不得，懷疑剛剛是拿成萬家香來沖咖啡了嗎？
The aroma of coffee is so interesting. We had a customer who tasted soy sauce when enjoying pour-over coffee!? LOL, suspected us just used soy sauce to make coffee?
咖啡風味來自生豆中各種營養成份在烘焙下，熱降解成各式氣味分子結構，產生類似各種香氣的風味。其中最主要的加熱反應包括梅納反應及焦糖化反應，生豆中有蛋白質(胺基酸)和糖類(葡萄糖)，就像做醬油的黃豆中也有這些成份，會因為各式成分含量多寡不同、以及反應過程不同、而有不同風味物質產出。
The coffee aroma comes from the thermal degradation of various nutrients in green beans into various odor molecular structures under roasting, resulting in flavors similar to various aromas. The most important heating reactions include the Maillard reaction and the caramelization reaction. There are proteins (amino acids) and sugars (glucose) in green beans, just like the soybeans used for soy sauce, and the reaction process is different, and there is different output of flavor substances.
有些咖啡比較會有醬油味、豆鼓味、烤肉醬味等這些類似的風味，特別在衣索比亞日曬豆中偶爾會出現，但常常是乾香時有嗅到，在溼香或品飲時就沒有了。這裏講到的醬油味，和有時候喝起來伴隨著鹹味的肉湯味不一樣，伴隨著鹹味的肉湯味通常是在比較不好的生豆、比較沒有其他好風味的豆子、烘焙過程較不完整、萃取較不完整等情況下才會出現，這二者不一樣。
有些人不愛這種風味，通常會以水洗豆為優先考量，就較容易避開這些風味。以前遇到愛喝這種風味的友人，只要在乾香聞到醬油味，他就知道這是他喜歡的醍醐味咖啡。咖啡世界中的香氣自然豐富，非常怡人、值得我們細細品味。
Some coffees have similar flavors such as soy sauce flavor, fermented soya beans flavor, barbecue sauce flavor, etc., especially in Ethiopian sun-dried beans. You can smell them as dry aroma. It's gone when it’s wet aroma or drinking it. The soy sauce aroma mentioned here is not the same as the broth flavor that is sometimes accompanied by a salty taste. The broth flavor accompanied by a salty taste is usually in the poor quantity raw beans, the beans with no other good flavors, and the roasting process is incomplete, less complete extraction, etc. These two soy sauce aroma are not the same.
Some people don't like this aroma and usually prefer washed coffee beans, which making it easier to avoid these flavors. A friend who likes this aroma and knows this is his favorite superb delicacy flavor when he smells the soy sauce in the dry fragrance. The aroma in the coffee world is naturally rich, very pleasant and worth tasting.
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