I went inside the Starbucks 'cupping room', where employees taste 100 cups of coffee per day and saw why it's essential to the chain's success

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I went inside the Starbucks 'cupping room', where employees taste 100 cups of coffee per day and saw why it's essential to the chain's success
  • Starbucks invited me to visit the cupping room in its Seattle headquarters.
  • Cupping is a coffee industry practice where experts test cups of coffee for quality.
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When I was in Seattle for Starbucks investor day, the chain invited me to visit headquarters and see how experts test coffee behind the scenes.

When I was in Seattle for Starbucks investor day, the chain invited me to visit headquarters and see how experts test coffee behind the scenes.
Mary Meisenzahl/Insider

I visited the cupping room, where specially trained Starbucks workers taste hundreds of cups of coffee each day to ensure they're high quality.

I visited the cupping room, where specially trained Starbucks workers taste hundreds of cups of coffee each day to ensure they're high quality.
Mary Meisenzahl/Insider
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We started with a geography lesson because Starbucks sources its beans from all three major coffee-growing regions in the world: Africa, Latin America, and Asia-Pacific.

We started with a geography lesson because Starbucks sources its beans from all three major coffee-growing regions in the world: Africa, Latin America, and Asia-Pacific.
Mary Meisenzahl/Insider

Brazil, Vietnam, and Colombia are the biggest coffee-producing countries in the world, head of Starbucks Coffee Trading Company Tim Scharrer told Insider.

Brazil, Vietnam, and Colombia are the biggest coffee-producing countries in the world, head of Starbucks Coffee Trading Company Tim Scharrer told Insider.
Mary Meisenzahl/Insider
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Coffee grown in different regions has different distinct flavor notes.

Coffee grown in different regions has different distinct flavor notes.
Mary Meisenzahl/Insider

The cuppers' job in this room is to make that the base flavors of each type of coffee are exactly what they should be, so they can be used in Starbucks drinks, the company's head of coffee and tea quality Andrew Linnemann said.

The cuppers' job in this room is to make that the base flavors of each type of coffee are exactly what they should be, so they can be used in Starbucks drinks, the company's head of coffee and tea quality Andrew Linnemann said.
Mary Meisenzahl/Insider
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With that information in mind, I put on a green apron to do my own cupping.

With that information in mind, I put on a green apron to do my own cupping.
Mary Meisenzahl/Insider

First, all the raw green coffee shipments are inspected for quality, scent, and consistency, similar to how you might check produce at a grocery store, Linnemann said.

First, all the raw green coffee shipments are inspected for quality, scent, and consistency, similar to how you might check produce at a grocery store, Linnemann said.
Mary Meisenzahl/Insider
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Then it's roasted in small batches in an adjoining room.

Then it's roasted in small batches in an adjoining room.
Mary Meisenzahl/Insider

All the samples of coffee beans must be treated exactly the same way so they can be compared fairly.

All the samples of coffee beans must be treated exactly the same way so they can be compared fairly.
Mary Meisenzahl/Insider
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Roasters carefully watch temperature and timing to ensure consistent beans.

Roasters carefully watch temperature and timing to ensure consistent beans.
Mary Meisenzahl/Insider

Then, Starbucks provided me with a sample to test myself with one coffee from each of the three regions.

Then, Starbucks provided me with a sample to test myself with one coffee from each of the three regions.
Mary Meisenzahl/Insider
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After brewing, the coffee forms a crust on top.

After brewing, the coffee forms a crust on top.
Mary Meisenzahl/Insider

I used a spoon to "break" the crust, which released the aromas beneath.

I used a spoon to "break" the crust, which released the aromas beneath.
Mary Meisenzahl/Insider
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The three cups had distinct smells that came through, so it was important to rinse my spoon between them to keep them separate.

The three cups had distinct smells that came through, so it was important to rinse my spoon between them to keep them separate.
Mary Meisenzahl/Insider

It's a messy process. "If you don't get coffee on your nose, you're doing it wrong," Bonnie Hall, senior manager of Global Coffee Quality and Operations at Starbucks, told me.

It's a messy process. "If you don't get coffee on your nose, you're doing it wrong," Bonnie Hall, senior manager of Global Coffee Quality and Operations at Starbucks, told me.
Mary Meisenzahl/Insider
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I learned that the roasting process also has an impact on flavor, sometimes leaving a "bready," baking smell.

I learned that the roasting process also has an impact on flavor, sometimes leaving a "bready," baking smell.
Mary Meisenzahl/Insider

It was kind of like wine tasting, where I suddenly noticed flavors I never had before once someone with more knowledge pointed them out to me.

It was kind of like wine tasting, where I suddenly noticed flavors I never had before once someone with more knowledge pointed them out to me.
Mary Meisenzahl/Insider
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The Ethiopian coffee, for example, had a very fruity scent that stood out when I tried it alongside other blends, while the Sumatran was more chocolatey.

The Ethiopian coffee, for example, had a very fruity scent that stood out when I tried it alongside other blends, while the Sumatran was more chocolatey.
Mary Meisenzahl/Insider

For the next step, cuppers used spoons to take off any remaining grounds ahead of actually tasting them.

For the next step, cuppers used spoons to take off any remaining grounds ahead of actually tasting them.
Mary Meisenzahl/Insider
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Then it was time to taste, under instruction from the experts.

Then it was time to taste, under instruction from the experts.
Mary Meisenzahl/Insider

Like wine tasting, coffee cuppers traditionally spit out the samples into a spittoon.

Like wine tasting, coffee cuppers traditionally spit out the samples into a spittoon.
Mary Meisenzahl/Insider
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Using the spittoon was by far the most intimidating part because it goes against all my instincts to spit into a giant bucket in public.

Using the spittoon was by far the most intimidating part because it goes against all my instincts to spit into a giant bucket in public.
Mary Meisenzahl/Insider

To taste it, I dipped a spoon slightly into the coffee and slurped it off the spoon.

To taste it, I dipped a spoon slightly into the coffee and slurped it off the spoon.
Mary Meisenzahl/Insider
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Tasting was more challenging than it sounds too because you have to aspirate the coffee, which is basically loudly slurping it.

Tasting was more challenging than it sounds too because you have to aspirate the coffee, which is basically loudly slurping it.
Mary Meisenzahl/Insider

This coats your taste buds and gets the aroma in your nose because smelling is key to tasting all the notes.

This coats your taste buds and gets the aroma in your nose because smelling is key to tasting all the notes.
Mary Meisenzahl/Insider
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While I moved slowly, trying to avoid getting coffee everywhere and noticing subtle flavors, the professionals moved shockingly fast.

While I moved slowly, trying to avoid getting coffee everywhere and noticing subtle flavors, the professionals moved shockingly fast.
Mary Meisenzahl/Insider

The cuppers sped down the line, scooping coffee up with a spoon in each hand before loudly slurping and spitting and moving on to the next cup.

The cuppers sped down the line, scooping coffee up with a spoon in each hand before loudly slurping and spitting and moving on to the next cup.
Mary Meisenzahl/Insider
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The Starbucks workers explained how this room is essential to the creation of every drink at Starbucks.

The Starbucks workers explained how this room is essential to the creation of every drink at Starbucks.
Mary Meisenzahl/Insider

All coffee is tested hot with these cupping methods that are standard across the coffee industry.

All coffee is tested hot with these cupping methods that are standard across the coffee industry.
Mary Meisenzahl/Insider
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With each variety narrowed down to its flavor profile, Starbucks coffee experts can experiment with combinations to see what works best for different blends, espressos, and cold brew.

With each variety narrowed down to its flavor profile, Starbucks coffee experts can experiment with combinations to see what works best for different blends, espressos, and cold brew.
Mary Meisenzahl/Insider

When Starbucks was developing cold brew, coffee experts tested these same blends under different conditions before landing on the standard 20-hour brew time.

When Starbucks was developing cold brew, coffee experts tested these same blends under different conditions before landing on the standard 20-hour brew time.
Mary Meisenzahl/Insider
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About 70% of the drinks Starbucks sells now are cold, but cupping hot coffee is still key to guaranteeing the quality of those drinks and developing new ones.

About 70% of the drinks Starbucks sells now are cold, but cupping hot coffee is still key to guaranteeing the quality of those drinks and developing new ones.
Mary Meisenzahl/Insider

The quality of Starbucks coffee, a multi-billion dollar business, is ultimately in the hands of just a few experts who taste nearly 1,000 cups per week.

The quality of Starbucks coffee, a multi-billion dollar business, is ultimately in the hands of just a few experts who taste nearly 1,000 cups per week.
Mary Meisenzahl/Insider

Do you have a story to share about a retail or restaurant chain? Email this reporter at mmeisenzahl@businessinsider.com.

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