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Fermentation

Fermentation is when tiny organisms such as bacteria or yeast change food. It makes yoghurt, cheese, bread, pickles and some drinks. It can add flavour and preserve food.

๐Ÿ’ก Fun fact

Yoghurt is milk fermented by friendly bacteria.

All about Fermentation

Fermentation is a process in which tiny organisms, such as bacteria, yeasts or moulds, break down sugars and other compounds in food. This changes the taste, texture and shelf life of the food and can make it more digestible.

Fermented foods include yoghurt, cheese, bread, pickles, soy sauce and some drinks. Fermentation can also preserve food by making it more acidic, which stops harmful bacteria growing. Many cultures have developed their own fermented foods.

๐ŸŽฎ Try it yourself!

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Real-life uses of Fermentation

  • Making yoghurt from milk and live cultures
  • Baking sourdough bread
  • Pickling vegetables for a tangy side dish

Frequently asked questions about Fermentation

Is fermentation the same as rotting?

No. Fermentation is controlled by beneficial microbes, while rotting involves harmful organisms that spoil food.

What foods are naturally fermented?

Yoghurt, kefir, sauerkraut, kimchi, miso, tempeh and sourdough bread are common examples.

Are fermented foods good for you?

Some contain live bacteria that may support gut health, although research is still developing.