The knack of distinguishing the freshness of coffee beans in boutique coffee
Smell: fresh coffee beans smell strong fragrance, otherwise tasteless or bad smell.
Look: good coffee beans are complete in shape and full in size. On the contrary, the shape is incomplete.
Pressure: fresh coffee beans are pressed fresh and crisp, and the fragrance floats 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.
Good coffee beans, neat shape, bright color, roasted by single stir-fry. After brewing, the flavor is mellow and the stamina is strong; the bad coffee beans are of different shapes and incomplete. It is not mellow enough to talk about fragrance after brewing.
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Coffee common sense sharing common sense of Espresso and espresso
1. When making ESPRESSO coffee, the most flavor will be extracted when the water temperature of 90.5 ℃ (195F) passes through the coffee powder. (the pressure of the water in the coffee machine must have 130PSI, that is, the pressure of 9 atmospheric pressure, in order to effectively and quickly extract the best taste of coffee. 2. When the water temperature is lower than 88.8 ℃, the coffee will have obvious sour taste, and the color is slightly lighter than the normal coffee.
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Coffee common sense what is the most difficult point in coffee technology?
I put forward such a topic to myself, mainly trying to solve some misunderstandings and puzzles in the thoughts of some barista friends. Coffee, if only in terms of technology in daily work, I do not think it is difficult, because to make coffee as a job, that is to do simple things over and over again. Besides, coffee is not high-tech, so how difficult is it? Have barista friends.
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