B1 Intermediate US 27294 Folder Collection
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My name is Mike Jones, and I'm a barista at Third Rail Coffee right by Washington Square Park in New York City.
I'm going to teach you some basic coffee-making skills.
Alright so you have the green beans, it's been harvested, processed from the country, and now it's at a roaster.
It's still not ready to be drunk. What this goes through is a process that is
that involves adding heat to the bean. Slowly, basically cooking it
in order to get it to the desired temperature to bring out everything that you want in a bean.
So this happens at temperatures ranging from like 392 to 400 plus degrees Fahrenheit.
What happens there is the starches in the bean actually caramelize. And so they turn into simple sugars.
It breaks down the protein cell structure and becomes less dense.
This all sounds very technical, but basically whats happening is you're pulling out the flavors within the green bean.
That if you were to just pulverize that green and try to brew it,
it would just taste like nothing, but this way its actually able to be ground and
have all aromatics and flavors released once you put it in contact with hot water.
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How Are Coffee Beans Roasted? | Perfect Coffee

27294 Folder Collection
YSI published on October 31, 2015    YSI translated    謝外八 reviewed
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