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How can a tiny speck help make a hole in cheese?

Gas explains why a cheese hole can grow, but it does not fully explain where the hole begins. Agroscope's research on Swiss cheese found that tiny hay particles can provide starting points for bubbles enlarged by carbon dioxide from bacteria.

4–6 min

Questions you could explore

  • Why did the researchers need to clarify that hay particles were not the whole explanation?

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Food

Why bread dough rises

The holes in a slice of bread are a record of what happened inside the dough. In ordinary yeast-raised wheat bread, making gas is only part of the story: the dough also has to hold it.

3–5 min

Why bread dough rises

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Food

How does milk become yogurt?

Yogurt begins with milk, but its tang and texture develop as starter bacteria change the mixture. Their use of milk sugar and the resulting acidity connect the microbial activity with what ends up on the spoon.

3–5 min

How does milk become yogurt?

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Food

How does mayonnaise keep oil and water together?

Oil and water separate readily, yet mayonnaise can hold them in a thick mixture. The oil remains in tiny droplets rather than dissolving, and emulsifying components help those droplets stay dispersed.

3–5 min

How does mayonnaise keep oil and water together?

Food3–5 minOil and water separate readily, yet mayonnaise can hold them in a thick mixture. The oil remains in tiny droplets rather than dissolving, and emulsifying components help those droplets stay dispersed.

How can a tiny speck help make a hole in cheese? | Speech Topic | speaking.app