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Food And Nutrition GCSE AQA

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  1. Food-Preparation-Skills gcse
    12 主题
  2. Macronutrients gcse
    3 主题
  3. Micronutrients gcse
    3 主题
  4. Nutritional-Needs-And-Health gcse
    5 主题
  5. Cooking-Of-Food-And-Heat-Transfer gcse
    3 主题
  6. Functional-And-Chemical-Properties-Of-Food gcse
    5 主题
  7. Food-Spoilage-And-Contamination gcse
    4 主题
  8. Principles-Of-Food-Safety gcse
    2 主题
  9. Factors-Affecting-Food-Choice gcse
    3 主题
  10. British-And-International-Cuisines gcse
    2 主题
  11. Sensory-Evaluation gcse
    2 主题
  12. Environmental-Impact-And-Sustainability-Of-Food gcse
    5 主题
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Exam code:8585

Why food is cooked

  • Food needs to be cooked for various reasons:

    • To make food safe to eat by killing pathogens which may cause food poisoning

    • Develop flavours to improve taste using techniques such as caramelisation or roasting

    • Improve texture by either making food softer and easier to chew and swallow, such as cooking vegetables, or some cooking methods can give crispy, crunchy textures, such as roast potatoes

    • Improve shelf life as bacteria and moulds are killed during the cooking processes, which can preserve the food for longer

    • Give variety in the diet by combining different foods during the cooking process or cooking the food in a variety of ways, e.g. chicken can be fried, grilled, roasted etc

  • Cooking food can change different qualities of the food such as:

Food quality

How it is changed

Example

Appearance

Some foods may change shape when cooked

Cakes and breads will rise in their tins when cooked

Colour

Foods can change colour when cooked

Eggs turn from translucent to opaque white

Smell

Chemicals are released from foods when cooked which can be pleasing to smell

Cooking food on a grill can release many chemicals into the air

Overall palatability

Cooked food can make eating the food a much more pleasant experience

Cooking onions can remove their powerful harsh flavour and add sweetness and softness to them

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