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The bitter taste in coffee comes from caffeine? Caffeine: I can't memorize this pot.

Published: 2026-04-04 Author: World Gafei

Last Updated: 2026/04/04, Professional baristas Please pay attention to the bitterness of coffee in the coffee workshop (Wechat official account cafe_style). Many people think that the bitterness in coffee comes from caffeine. In fact, roasted coffee beans produce a continuous reaction in which chlorogenic acid in coffee beans is converted to chlorogenic acid lactone, which continues to deepen the baking degree, which is decomposed into phenyl dihydrogenated indene. Chlorogenic acid lactone can

For professional baristas, please follow the coffee workshop (Wechat official account cafe_style)

Coffee is bitter, and many people think that the bitterness in coffee comes from caffeine.

In fact, roasted coffee beans produce a continuous reaction in which chlorogenic acid in coffee beans is converted to chlorogenic acid lactone, which continues to deepen the baking degree, which is decomposed into phenyl dihydrogenated indene.

Chlorogenic acid lactone can produce moderate bitterness in medium and light roasted coffee, and being decomposed into phenyl dihydroindene is the root cause of the bitterness in coffee.

Coffee is bitter

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。