As a frequent coffee drinker, do you find that when you start to get a cup of hot coffee and keep it in a warm and cold state, you will have different taste feelings?
Maybe all of a sudden, you will find that coffee has become obviously sour, sweet, fruity or floral.
Why does coffee flavor change with temperature?
One is that the flavor of coffee itself is changing, and the other is that temperature changes make us feel the flavor of coffee change;
Temperature affects our sensitivity to taste. For example, we can often drink sour, sweet and bitter in coffee.
- When the acidity is between 10-40℃, the taste buds’ perception of sourness is almost unchanged, but when the temperature rises further, the taste buds’ perception of sourness will be obvious.
- When the sweetness is above 50℃ and below 35℃, we (taste buds) are slow to perceive sweetness, but when we are close to human body temperature, we are more sensitive to perceive sweetness.
- Bitterness is difficult to perceive at high temperature. When the temperature drops to normal temperature, our perception of bitterness is very sensitive.
It is precisely because of different temperatures that we have different perceptions of sweetness and bitterness, so tasting coffee at different temperatures will have different flavor expressions. Therefore, in the cup test, it will be divided into three temperatures: high temperature, medium temperature and low temperature.The high temperature zone is about 50-70℃, and above 70℃ it is actually very hot and difficult to taste the flavor. At high temperature, the main drink is the flavor tonality of coffee, that is, the general flavor trend.
Generally, the medium temperature zone is used for tasting delicate flavor, and the temperature is about 35-50℃. At this temperature, many delicate flavors can be tasted, and it is also a sensitive temperature to perceive sour and sweet taste.
The low temperature zone is about 35℃ to room temperature, and some negative flavors are easy to appear at this temperature, so it is more comprehensive to taste coffee beans when tasting the low temperature zone in the cup test.
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