It’s Harshness Not Bitterness

Contents:

1. What does “harshness” mean in coffee?
2.  Why does coffee sometimes have  a “bitter” taste?

What does “harshness” mean in coffee?
 

When the coffee is too strong, you will feel that this cup of coffee has a “bitter” taste! But in fact, this is not “bitter” caused by bitter substances, but a feeling commonly known as “harshness.” Obstructing the palate will make the taste feel heavy and uncomfortable, but if you taste it carefully, it seems to have a bad taste.
 

Why does coffee sometimes have  a “bitter” taste?
 

Over-extracted coffee will also have a “bitter” taste, and it will be accompanied by “astringency.” It is because the bitter and astringent compounds such as chlorogenic acid lactone or dicaffeoquinic acid in coffee are excessively extracted.

 

Coffee too strong is usually caused by a too low powder-to-water ratio (too little water), or over-extraction caused by factors, such as too finely ground coffee, too high water-temperature, and too long brewing time. Therefore, if it’s too strong, you can bypass it by adding water to adjust the strength and make the coffee taste better. It is more difficult to add water to make the coffee taste better because of the unpleasant taste such as miscellaneous, astringent, and bitter are already in the coffee. To avoid over-extraction, you can adjust the following factors that affect the extraction rate. Adjust and taste every brew to find your preferred coffee brewing techniques.

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