Long before you do this, someone at Starbucks has done this. It's the spit-and-polish of coffee making. You are inside the cupping room at Starbucks world headquarters in Seattle. This is where the coffee that eventually makes it into your hand, first gets vetted.

We evaluate flavor of the coffee to make sure that they are of the quality that we want and that we're gonna be able to use them the way that we want in our coffee blends and a single origin offerings.

Today they're testing 40 coffees. And this is a light day. Sometimes this table is crammed with hundreds of glasses, each one a little different, each one needing a taste.

I start with the basics, and I do look for that, those scientific pieces, the acidity, the body, the flavor and the complexity.

Only 20 people worldwide have this job for Starbucks. These three work here in Seattle. They begin by grinding the beans. Next comes the shot of boiling purified water. Then they stir the finished product.

That's gonna release a steam from the top, that is when you're building up underneath. So you're gonna get a real good sense of what that, what the coffee is gonna taste like.

Inhale the aroma.

I'm not just do real good agitation, it's tough and then what's gonna happen is gonna saturate the grounds, and the grounds are gonna fall on the bottom of the cup.

And skim the froth. Only after that, those coffee meet power.

It's not really about how loud you slurp, it's not really about how violent you slurp, actually it's all about atomizing the coffee to make sure kind of sprays around your mouth. You've told the mouth feel and also get(s) in your old factories, so that you can actually evaluate the flavor fully at that point.

These are not people you wanna invite over for coffee. If they'll like it, they spit it out. And if they do like it, they spit it out. They have some of the most sophisticated coffee palates in the world. They can actually tell from the taste where a cup of coffee was grown. And Starbucks listens closely to what the cuppers as they are called have to say.

We say that some people have a golden tongue in the building, and if they like it, you know, they pretty much know what's gonna do well.

It's probably the only job where burning your tongue means you have to take a sick day.

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