Preservation of coffee preservation methods of roasted coffee beans
The flavor of roasted coffee beans is easily damaged. The following factors are enemies of coffee flavor: too high or too low temperature, air, sunshine, moisture and strong smell
Freshly roasted coffee beans release hundreds of chemicals in the form of steam. Coffee beans should have 1 to 3 days to ventilate and release these gases before use.
After roasting, coffee beans begin to lose flavor after a week; ground beans begin to lose flavor within an hour.
Coffee beans should be packed in vacuum bags with one-way vents to allow gas release without touching the air, so that the packaged coffee beans will retain their flavor for longer; vacuum-packed coffee beans will soon get worse once they come into contact with the air. But if properly stored, coffee beans can also stay relatively fresh for 1 to 2 weeks.
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Coffee extraction Coffee with different utensils and different boiling methods
According to different utensils and cooking methods, coffee beans are ground into appropriate thickness to make espresso. The ground coffee powder needs to be filled and pressed, and then Espresso espresso coffee is extracted by Italian coffee machine under high pressure. Coffee is usually brewed with siphon coffee machine, mocha pot, American coffee maker, filter cup, filter press and so on.
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The extraction of various coffee utensils grind the coffee beans to the right thickness.
Different utensils, even different coffee beans in the same vessel, need to be ground to a specific thickness. For all kinds of coffee extraction methods, whether the grinding degree is appropriate or not can directly determine its success or failure. The grinding of coffee beans seems complicated, but in fact there are rules to follow. No matter what kind of utensils are used to extract coffee, generally speaking, the shorter the extraction time is, the powder will be needed.
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