Basic knowledge of Coffee Oil output and freshness of Coffee
Oil yield and freshness: the appearance of freshly baked shallow baked beans should be dry without oil, and the surface of freshly baked deep baked beans should be oily. It is the correct idea that we should understand. When buying coffee beans, the appearance of oil, no oil is a reference index to judge the freshness, but not absolutely. The best policy is to buy reputable freshly roasted coffee beans.
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General knowledge of fine coffee caffeine of deep roasted beans is higher than that of shallow roasted beans
The melting point of caffeine is as high as 237 degrees Celsius, so the roasted caffeine is almost completely retained and dissolved in the cup. People often mistakenly think that the caffeine of deep roasted beans is lower than that of shallow roasted beans, but the fact may be just the opposite. due to the high rate of dehydration and weight loss of deep roasted beans, it is necessary to brew coffee with more coffee beans, resulting in drinking more caffeine, so the caffeine of deep roasted beans is higher than that of shallow roasted beans.
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Coffee Knowledge Coffee Deep Roast and Light Roast
Deep roast and light roast Simply speaking, coffee beans roast into the second explosion will be called deep roast, one explosion dense to two explosions will be called light roast to medium deep roast, the color is also the deeper the roast and closer to black. First of all, let's talk about deep roasting. When it comes to deep roasting, we must talk about the legendary figure in the coffee world-Alfred Peet. Mr. Pitt worked to promote heavy baking in the 1960s.
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