Coffee knowledge Italian espresso beans

The false impression of espresso = high caffeine seems to have taken root in everyone's mind. In fact, real espresso beans are usually roasted deeply for a long time, and there is not much caffeine left. As for the remaining little caffeine, it must be extracted for a long time to dissolve. As a result, espresso with an extraction time of only 25-30 seconds has a lower content than ordinary coffee.
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The knowledge of coffee technology in selecting coffee beans
No matter what kind of coffee beans, freshness is an important factor affecting the quality. When shopping, grab one or two coffee beans and chew them in your mouth. If the coffee beans are crisp and sound, and the teeth and cheeks stay fragrant, it is the top grade, but it is best to squeeze them with your hands to feel whether they are solid, rather than buying empty-shell coffee. If the coffee bean has lost its fragrance or smells stale, it means
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Coffee Technology distinguishes ESPRESSO quality
Coffee, what is it? A drink, a carrier of taste, a way to feel the details of life. When you are in a cafe to enjoy a cup of coffee packaged by various cultures, have you ever thought about and learned to identify whether you are drinking a perfect cup of coffee, rather than spending dozens of yuan to drink pot water? so that you always think that coffee is bitter.
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