Scientists discover the real reason Swiss cheese has holes

cheese
(Image credit: iStock)

A team of Swiss scientists has finally discovered the answer to a mystery close to their hearts: the reason Swiss cheese has holes.

The scientists at Agroscope, an agricultural research center, found that the holes are the result of hay inside the milk used to make the cheese, rather than from bacteria, as scientists previously believed.

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Meghan DeMaria

Meghan DeMaria is a staff writer at TheWeek.com. She has previously worked for USA Today and Marie Claire.