What is inside Swiss cheese holes?

nitrogen
carbon dioxide
water vapor
air
Carbon dioxide is produced by bacteria feeding on the lactic acid. In the Middle Ages, the holes were con­sid­ered a sign of im­per­fec­tion and cheese makers would try to avoid them.

Answers distribution

nitrogen
carbon dioxide
water vapor
air
answers
flagFinland
1%
96%
0%
1%
53
flagthe United Arab Emirates
2%
78%
8%
10%
37
flagItaly
2%
75%
4%
17%
73
flagGermany
3%
70%
2%
24%
330
flagNorway
5%
68%
3%
20%
54
flagFrance
4%
64%
2%
26%
87
flagPoland
8%
63%
3%
24%
21910
flagIndia
10%
63%
9%
14%
583
flagSpain
3%
63%
0%
30%
33
flagRepublic of Ireland
4%
62%
2%
30%
103
flagPakistan
5%
62%
8%
21%
75
flagthe United Kingdom
8%
59%
5%
25%
801
flagMalaysia
12%
58%
12%
15%
39
flagthe Netherlands
6%
57%
2%
33%
90
flagthe United States
11%
56%
6%
24%
1316
flagthe Philippines
12%
56%
9%
21%
83
flagUnknown
10%
53%
4%
31%
130
flagCanada
8%
53%
7%
26%
89
flagAustralia
15%
46%
7%
26%
63
flagSweden
5%
44%
5%
44%
34

Gender

men67%
women59%
nitrogen
8%
10%
carbon dioxide
67%
59%
water vapor
2%
2%
air
21%
27%

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What is inside Swiss cheese holes?
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Author: Kasia
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