Class 5 (SSC) • Science (सामान्य विज्ञान)Chapter 13: Methods of Preserving Food⭐ Topic 1
Methods of Preserving Food
Food preservation methods like drying, refrigeration, and canning help keep food safe and edible for longer periods, reducing waste.
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Drying removes moisture from food, preventing the growth of bacteria and mould, used for foods like fruits, grains, and fish.
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- Drying removes moisture, prevents bacteria/mould.
- Used for fruits, grains, fish.
- Refrigeration/freezing slows bacteria growth.
- This extends shelf life.
- Canning: airtight sealing plus heating.
- This kills bacteria for long storage.
- Salting/pickling use salt or vinegar.
- This prevents harmful bacteria growth.
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methods of preserving foodssc std 5