Why are there holes in Swiss cheese?

Moment of Um

American Public Media

Kids & Family, Education For Kids

4.4 • 1.5K Ratings

🗓️ 14 January 2025

⏱️ 4 minutes

🔗️ Recording | iTunes | RSS

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Summary

Have you noticed that there’s a kind of cheese that’s holier than all the rest? Swiss! Why does it have all those holes anyway? We asked Jenny Eastwood of Small Goods to help us answer this delicious question.
Hungry for some answers? Send your questions to BrainsOn.org/contact, and we’ll briepare an answer justfor you.

Transcript

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0:00.0	From the brains behind brains on, this is the Moment of Um.
0:07.6	Moment of Um comes to you from APM Studios. I'm Rosie DuPont.
0:12.8	Um.
0:14.7	This is my friend Bob. He's a mouse.
0:18.4	I'm a mouse. In a house. In a good mood.
0:21.8	Because there's food.
0:23.2	Literally everywhere.
0:24.7	Oh, boy.
0:26.4	These humans are a mess.
0:28.6	They had a huge party and didn't clean up and went to bed.
0:34.7	There's chips and salsa.
0:38.3	Peanut butter granola balls, and cheese galore.
0:42.3	Oh, what a great day!
0:44.3	So many snacks to attack, crunches to bunch,
0:47.3	but wait a minute, why does this piece of cheese have holes all over it?
0:51.3	Did some other mouse get to it first? Why are there holes in Swiss cheese?
0:58.0	My name is Jenny Eastwood and my company is called Small Goods.
1:06.0	I am what is known as a cheese monger. A cheese monger is one who sells cheese. Swiss cheese has
1:12.9	holes because of little gas explosions caused by very tiny, very healthy microbes. So what are
1:22.7	microbes? Well, microbes are very tiny organisms that can only be seen under a microscope.
1:28.9	Microbes live in cheese, happily munching away on the sugar and fat within that cheese.
1:34.9	And just like people, all that food makes them full of gas.
	...

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