8 Puzzling Food And Drink Mysteries Solved

Why does Swiss cheese have holes?

Swiss cheese (Emmental) gets its famous holes from bacteria known as P. shermanii that are added to the milk before formation of the curds.

What causes brain freeze?

Brain freeze happens when blood vessels in the roof of your mouth rapidly constrict when cold food or drink, like ice cream, touches it.

Why do cut apples go brown?

Oxygen in the air activates enzymes (catalysts of biochemical reactions) in apple flesh. These enzymes trigger natural plant chemicals called polyphenols to start producing melanins.

Why do bananas make other fruit go off quicker?

Bananas release a gas known as ethylene that begins the ripening process.

How does salt increase blood pressure?

Salt attracts water, so when you eat a salty diet it increases the amount of water retained by the body.

How can seedless grapes reproduce?

Seedless grapes aren’t actually completely seedless, but have naturally mutated to have fewer and smaller seeds, without a tough coat.

Are canned tomatoes healthier than fresh?

Processing tomatoes through canning or cooking makes them a better source of lycopene – the red antioxidant that has been linked with a lower risk of heart disease and stroke.

How do microwaves cook food?

When microwaves pass through foods, they make the water molecules in it vibrate, creating the heat energy which cooks the food.

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