COMMON METHODS OF FOOD PRESERVATION AND STORAGE

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The following are some common methods of food preservation

  • Salting: Salting is the commonest chemical used in food preservation. Salt destroys bacteria and drains water in food. We can use salt in preserving meat, fish, pepper, tomatoes, and locust beans, among others.
  • Drying: Water is removed in drying. It is used in the preservation of fruits like coconut, pepper, vegetables, etc. Sun or oven can be used for drying. To hasten drying, the food can be sliced or cut into smaller sizes.
  • Smoking: This is done using wood smoke. The smoke contains some chemicals that make bacteria inactive. You can use it for fish or meat.
  • Refrigeration and Home Freezing: A refrigerator is needed for this method. A deep freezer can also be used. Fish, meat and milk are most preserved using this method. This method slows down bacterial actions but don’t totally stop it. Food in the refrigerator can last for one or two days, while the ones in the freezer can last for three or more days.
  • Canning: Keeping food canned significantly extends its lifespan – but only if done correctly. The canning process preserves food by removing oxygen through an airtight seal and containing food in an acidic, sugary, or salty environment, where bacteria cannot thrive

Food Storage Methods

Reasons for Storage

  • To prevent pests from eating and spoiling them.
  • To make foodstuffs available always in the house.
  • To save cost by bulk buying when food is in season.
  • To ensure store is well arranged.
  • To retain the quality of the food

Containers for Storing Food

  • Polythene bags and sheets.
  • Special wrapping leaves and papers like banana or plantain leaves, foil, etc.
  • Plastic containers with tight fitting lids and covered buckets.
  • Bottles
  • Glass containers

Quiz

  1. Mention four methods of food preservation.
  2. What are the reasons for food storage?
  3. List three containers for storing food.
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