Baristas train tips for distinguishing the freshness of coffee beans
Nose smell: fresh coffee beans smell strong fragrance, otherwise tasteless or bad smell.
Look at it: good coffee beans are complete in shape and full in size. On the contrary, the shape is incomplete.
Hand pressure: fresh coffee beans are fresh and crisp, and the fragrance comes out when they crack.
Color: dark black coffee beans, the coffee brewed has a bitter taste; yellow coffee beans, the coffee brewed has a sour taste.
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Basic Analysis of barista training what is the Crema of Coffee
What is Crema? How did it come about? During the roasting process, a large amount of carbon dioxide is produced in the coffee beans, most of which will be emitted during the cooling process, a few will continue to be kept inside, and the grinding will release these gases, so coffee must be made as soon as possible after grinding. When hot water hits coffee powder under high pressure, it will emulsify the insoluble oil of coffee powder and pass.
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Barista training knowledge: types of coffee baking utensils
Coffee is popular mainly because of the aroma formed after roasting and the taste when drinking. The coffee raw bean itself does not have any special taste, but roasting completely changes and reorganizes the substances inside the raw bean to form a new structure, thus bringing out the mellow flavor of coffee, and coffee roasting is the coffee knowledge that baristas need to know. Tool roaster for baking, points
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