[caffeic acid] what acid is in coffee?

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Coffee contains all kinds of acids, most of which can be found in agricultural products:

* Amino acids such as asparagic acid, glutamic acid and leucine; when the concentration of amino acids exceeds the normal value, it will produce sweetness.

* Carboxylic acids such as caffeic acid, chlorogenic acid and quinic acid; when the concentration of carbolic acid exceeds the normal value, it will produce bitterness.

* Fatty acids such as acetic acid, lactic acid, citric acid, fumaric acid, oxalic acid, phosphoric acid and tartaric acid.

. Fatty acids make coffee taste bright and fragrant, which is why high-priced coffee has high acidity (low PH 4.8-5.1).

. The order of acid strength in coffee is tartaric acid, citric acid, malic acid, lactic acid and acetic acid.

. The strength of the acid affects the other taste of the coffee liquid, especially the sweet taste.

. Each acid has its own unique taste, such as lemon flavor of citric acid, cream flavor of lactic acid, apple flavor of malic acid and so on.

. Acid-induced aromas are easier to feel through the sense of smell than through the sense of taste

* Acid > base value order: lemon > beer > Arabica coffee beans > Robska coffee beans > milk > water

It doesn't hurt to drink more coffee, but it's okay to drink more water!