1)the plant/fruit is crushed between metal plates (2)when pressed it is mixed with water and plant material. 3)then filtered 4)to remove water they use distillation as water has a low boiling point or centrifugation
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How does centrifugation work?
The products are spun at high speeds and causes the water and oil to seperate
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How does distillation work?
1)Water is heated to make steam.2)steam evaporates the oils from the plant materials.3)The oil vapour is cooled and condensed back into a liquid
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Why does the oil float on top of the water?
Because the oil is less dense than water
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What are the 3 uses for plant oils?
Food,Cooking,Fuels
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Why is plant oil good for cooking?
Vegetable oils have higher Boiling points so can cook at higher temperatures,making cooking quicker aso it gives more colour and flavour
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What can too much food cooked in oil make you?
Obese
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What do you add to water and oil to mix them?what is this called?
emulsifier,emulsion
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Other cards in this set
Card 2
Front
Explain how crushing and pressing works?
Back
1)the plant/fruit is crushed between metal plates (2)when pressed it is mixed with water and plant material. 3)then filtered 4)to remove water they use distillation as water has a low boiling point or centrifugation
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