11 Mar 2018
coffee valve explains to you why the coffee need to brew, we all know that coffee is different with tea, actually coffee comes from pieces of coffee seed, and the density is much larger than tea, so it cannot be edible directly, and it needs to roast by high temperature, actually this process is belong to puffed. Because the lignocellulosic structure of coffee beans can be opened after the puffed process. And the aromatic substance can stay in the crisp roasted (puffed) coffee beans.
The young friends, of course, include some elder people who are unfamiliar with coffee. Whenever they talk about brew coffee, they always think that it’s hard to understand and it is a very skilled and complicated activity. Chinese always sum up the production of fresh ground coffee use the "brew" word.
If you know a little bit about coffee, you know for sure that coffee is roasted from green beans to the brown beans that we are all familiar with. So why the coffee beans cannot directly pour into the pot to cook, or soak for a while to make a cup of fragrant coffee?
After roasting, the next step is to grind the coffee bean. This process can make more aromas to be extracted. And this phenomenon we always called increasing extraction rate. For the following step, we need to use water to extract the coffee taste from the coffee power, and then the coffee color will appear. So we want to drink a cup of coffee, coffee beans need to go through: puffing - grinding - extraction, to get the final coffee. So coffee needs to "brew."
Tag: coffee valve
Originally published 11 Mar 2018, updated 11 Mar 2018.
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