General knowledge of boutique coffee how to choose coffee beans
The freshness of coffee beans is the most important factor affecting the brewing quality of coffee, because the activity of coffee beans is hidden in its smell. Fresh coffee beans, like a can of bubbly, full-tasting cola, can smell a pleasant aroma as soon as the bag is opened.
Look at that. Fresh and good coffee beans are round in shape, big, fat and shiny, while on the contrary, they are broken and different in shape.
Press. Before buying, put a bean in your mouth or hand and gently press it. The fresh bean has a crisp texture and a light, fragrant sound when it opens.
Pinch. It is best to squeeze it with your hands to feel whether it is solid or not, rather than buying coffee with a crispy shell.
Chew. When shopping, it is best to take one or two coffee beans in the mouth towel to chew, to clear sound (indicating that the coffee has not been damp), teeth and cheeks to stay fragrant is the top grade.
Smell it. If the coffee bean has lost its fragrance or smells miscellaneous, it means that the coffee bean is no longer fresh and is not suitable to buy.
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Storage methods of coffee beans there are several ways to preserve coffee beans
Roasted coffee beans are easily exposed to oxygen in the air to produce oxidation, which deteriorates the oil quality, volatilizes and disappears aroma, and then accelerates deterioration through temperature, humidity, sunshine and so on. Especially after multi-layer treatment of low-caffeine coffee beans, oxidation is carried out faster. Therefore, in order to maintain the aroma and quality of coffee, how to package and preserve coffee beans is necessary.
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Basic knowledge of fine coffee the purity of coffee beans
The expert candidate for coffee is not to look at the size of the particles, but to grab a handful of individual coffee beans, about dozens of them, to see whether the color of each coffee bean is the same and the granules are large.
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