Coffee roasting with charcoal fire originated in Japan
Coffee roasting with charcoal fire originating in Japan. Coffee taste soft and mild, with charcoal aroma should be the characteristics of this baking. The proportion of charcoal fire far infrared ray is high, and the quality of roasted coffee beans is more uniform inside and outside. The disadvantage is that the cost is high, the production capacity is small, and the adjustment of carbon firepower is also difficult. At present, most of the so-called charcoal-roasted coffee is not charcoal-roasted coffee, but heavy-roasted coffee that strengthens the bitterness of burning.
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Detailed explanation of individual coffee knowledge ice drop coffee
In the Netherlands, the common iced coffee drip filter consists of 3-4 layers of glass containers mounted on wooden seats. It is recommended to choose deep-roasted coffee beans to make ice-drop coffee. Slow drip filtration of seven drops in 10 seconds is recommended for about eight to ten hours. This long-time low-temperature extraction method makes the coffee powder 100% wet and effectively removes bitterness and tannins. Coffee is clear amber, full-bodied, smooth and not sour.
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The amount of caffeine in coffee.
The caffeine content of coffee is related to the type of coffee bean, the degree of roasting of the coffee bean, and the soaking time of the coffee powder: Robusta beans are much higher than Arabica beans; the deeper the coffee bean is roasted, the less the caffeine will evaporate; the longer the coffee powder is steeped, the more caffeine will be extracted. So for the same amount of beans, ESPRESSO made with dark roasted Arabica beans has the least caffeine.
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