Note: caffeine is higher than 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. This is important.
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How to select coffee beans with a vibrating screen? What is the skill of picking beans?
I saw on the Internet yesterday that someone asked if the vibrating screen could screen peanuts and coffee beans, and the answer was yes. In the following, some problems and solutions of vibrating screen in screening these two materials are discussed. First of all, customers need to know the number of peanuts and coffee beans, and then choose the appropriate sieve, which is like screening peanut and coffee beans.
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The relationship between oil yield and freshness of coffee the cause of oil production of coffee beans
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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