How does fermentation transform food and drink?

Fermentation is like letting food and drink have a little party inside them, turning them into something new and tasty.

Imagine you're making bread. You mix flour, water, and yeast, the yeast is like a tiny chef who loves to eat sugar and makes bubbles of gas, which help the dough rise. That's fermentation in action!

• It changes flavors: Just like when fruit ripens and gets sweeter or sourer, fermentation can make food and drink taste different. For example, grapes become wine, and milk becomes yogurt.
• It helps food last longer: When you make pickles, you put them in salty water, the salt stops bad bacteria from growing, but it also lets good ones (like lactic acid bacteria) work their magic, making the cucumbers crunchy and tangy.

Fermentation is like a kitchen full of tiny workers that take everyday things and turn them into something exciting, just like how your favorite snacks become even better when they're made with care!