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PRESERVATION OF FOOD - Coggle Diagram

- - - - Boiling
      - Pasteurization
      - Canning
    - - Protective covering – polythene, foil
      - Raising temperature – cooking
      - Lowering temperature – refrigeration, freezing
      - Adding chemicals – sodium benzoate
    - - Mild heat treatment
      - Blanching (before freezing/dehydration)
- - - - Clean utensils
      - Wash & cut food
      - Blanch vegetables
      - Sun dry on clean cloth
      - Store in airtight containers
    - - Methi, mint leaves
      - Potato chips
      - Cauliflower
      - Papad
- - - - Bacteria & fungi
      - Need air, moisture, warmth & food
      - High-moisture foods spoil faster
    - - Naturally present in food
      - Help in ripening but cause over-ripening & decay
    - - Attack grains & pulses
      - Make food unfit for consumption