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Questions and Answers
What is the primary purpose of heat treatment in food preservation?
What is the primary purpose of heat treatment in food preservation?
- To alter the texture of the food
- To kill microorganisms and extend shelf life (correct)
- To change the color of the food
- To enhance the flavor of the food
What is the typical temperature used for heat treatment in canning?
What is the typical temperature used for heat treatment in canning?
- 150 ̊C
- 180 ̊C
- 100 ̊C
- 121 ̊C (correct)
Which material is often used as a lining in untinned steel cans?
Which material is often used as a lining in untinned steel cans?
- Plastic (correct)
- Glass
- Tin
- Aluminum
What is the primary microorganism that heat treatment aims to destroy in canning?
What is the primary microorganism that heat treatment aims to destroy in canning?
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In which type of vessel are containers placed for heat treatment?
In which type of vessel are containers placed for heat treatment?
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What is the primary purpose of reducing water content in food before freezing?
What is the primary purpose of reducing water content in food before freezing?
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What happens to the volume of fruit juices after concentration?
What happens to the volume of fruit juices after concentration?
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What is the resulting solid content percentage of milk after evaporation?
What is the resulting solid content percentage of milk after evaporation?
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What is the purpose of blanching before freezing?
What is the purpose of blanching before freezing?
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How many processes are available for food concentration?
How many processes are available for food concentration?
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