Basic 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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Coffee common sense Coffee beans are preserved in the following ways
Roasted coffee beans are easily exposed to oxygen in the air and produce oxidation, which makes the oil contained deteriorate, the aroma also volatilizes and disappears, and then accelerates deterioration through temperature, humidity, sunshine, etc. In particular, the oxidation of decaf coffee beans, which have been treated in multiple layers, proceeds faster. Therefore, in order to maintain the aroma and quality of coffee, how to package and preserve coffee beans has become
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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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