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Short Wave

Eating Breakfast? You Can Thank Fermentation

Short Wave

NPR

Daily News, Nature, Life Sciences, Astronomy, Science, News

4.76K Ratings

🗓️ 11 November 2024

⏱️ 15 minutes

🧾️ Download transcript

Summary

In this episode, you're invited to the fermentation party! Join us as we learn about the funk-filled process behind making sauerkraut, sourdough and sour beer. Plus, no fermentation episode is complete without a lil history of our boy, yeast.

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Transcript

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0:00.0

This message comes from Indiana University. Indiana University is committed to moving the world

0:05.7

forward, working to tackle some of society's biggest challenges, nine campuses, one purpose,

0:11.9

creating tomorrow today. More at IU.edu. You're listening to Shortwave from NPR.

0:22.0

Hey, Charlotte Waivers, it's Regina Barber, and we're starting today's episode with breakfast.

0:27.2

Because regardless of what you had for breakfast today, chances are at least part of it was made by fermentation.

0:33.9

Yogurt and granola, fermentation.

0:36.4

Eggs with cheese, fermentation.

0:38.3

Bread, fermentation.

0:40.3

It's even key in coffee.

0:42.3

When a coffee bean is harvested, you know, in the jungles of Costa Rica or Colombia or wherever it might be,

0:50.3

those berries, which look like little tiny cherries, are almost like crab apples.

0:57.9

They got a hold into baskets or trucks and then like thrown onto the ground.

1:01.1

And there's either like dry or wet fermentation.

1:07.2

But in both cases, just whatever endemic microbes are in the jungle, on the fruit,

1:14.3

start to acidify and metabolize all of the fruit flesh, and all those metabolize,

1:18.2

all the acids that are produced, all the organic molecules, seep into the actual coffee bean itself and change its flavor. This is David Zilber, chef, reality TV show host, and former

1:25.3

director of the fermentation lab at the world famous Danish restaurant,

1:29.5

Noma. And he told me, if fermentation wasn't part of my coffee, it wouldn't even be good.

1:35.7

If you took a fresh coffee bean and like completely stripped it of the fruit and dried it

1:41.4

immediately and then went through the same roasting process, you would end up with the most, like, flat, cardboardy, acrid coffee compared to what happens

1:50.4

post-fermentation. So fermentation is an incredibly important step in coffee production.

1:55.2

To make it taste delicious. Yeah. Complex. Okay, I'm convinced, fermentation is important.

...

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