Coffee Roasting for the First Time (1) Defective Beans
Defective beans have a great influence on the taste of coffee
The first step before baking beans is to pick out all kinds of defective beans, some of which are not easy to identify after baking. At present, there are some high-quality coffee raw beans on the market, which are carefully selected and processed when they leave the factory. The following picture shows the types and causes of defective beans.
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Small Dictionary of Coffee knowledge (1) about Coffee beans
A brief explanation of some common terms about coffee beans. Share from Su Yanzhang's "Coffee Taste"
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Coffee knowledge Espresso has the lowest caffeine content
Caffeine content is related to the variety of coffee beans, the degree of roasting and the soaking time of coffee powder: robusta beans are much higher than Arabica beans; the deeper the coffee beans are roasted, the less caffeine is; and the longer the coffee powder is soaked, the more caffeine is extracted. So for the same amount of beans, deep-baked Arabica beans are Italian concentrated with an Italian coffee machine and contain the least caffeine.
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