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WorksheetsFood Preservation
Total questions: 20
Worksheet time: 20mins
What is the purpose of food preservation?
(a)
List two factors that can cause food spoilage.
(a)
Which of the following are food preservation methods?
Freezing, vacuuming sealing, boiling
Freezing, dehydrating, canning
Dehydrating, frying, canning
Define Dehydration
(a)
Identify a recipe and the preservation technique that is used.
(a)
What is the danger zone?
4-60 celsius
5-80 celsius
5-60 celsius
What is the purpose of sugar in a yeast mixture?
(a)
Explain the physical changes that occurs to a mango when it is dehydrated.
(a)
What is the purpose of salt or sugar during the process of dehydration?
(a)
How does altering pH assist in preserving food?
(a)
Explain the process of altering the pH of a food product.
(a)
What ingredients are used to alter pH levels?
salt, sugar, oil
salt, sugar, vinegar, lemon juice
vinegar, lemon, pepper
What is needed to aerate dough?
air
oxygen
carbon dioxide
When sugar is converted to lactic acid food products are fermented. Provide an example of this type of fermentation.
(a)
Describe the purpose of Vacuum sealing.
(a)
Explain the purpose of adding chemical.
(a)
The addition of salt to a food product is to:
retard the microorganisms and preserve food product
speed up food spoilage
flavour
Why is freezing an ideal food preservation technique?
(a)
Why is it important that products to be frozen and packaged and sealed effectively?
(a)
Which of the following foods are suitable for freezing?
Berries, ice-cream, eggs
Berries, chicken, fish
chicken, honey, vegemite
