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Food Technology Packaging Materials Exam Questions and Answers
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Food Technology Packaging Materials Exam Questions and Answers
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Food Technology: Packaging MaterialsExam Questions and Answers
There are concerns about the effect food packaging is having on the environment. Much
of it is non-recyclable. Manufacturers are trying to develop more environmentally
friendly packaging. - Correct Answers -Packaging must not:
• Be dangerous to human health
• Cause food to deteriorate (starting to decay and losing freshness)
• Cause unacceptable changes to the quality of the product
The four main packaging materials: - Correct Answers -• Metals
• Glass
• Card and paperboard
• Plastics
Metals (mainly tin plate and aluminium)
Advantages: (Metals) - Correct Answers -• Strong
• Different thicknesses for different uses eg foil, cans
• Can be moulded into different shapes
• Lightweight
• Impermeable to contamination (cannot penetrate)
• Can be recycled
• Preserves food
• Can be heat treated
Disadvantages: (Metals) - Correct Answers -• Can react with some foods so these cans
need non metallic linings
Advantages: (Glass) - Correct Answers -• Can be moulded into various shapes
• Rigid
• Transparent so product can be seen
• Recyclable
• Resistant to high temperatures when the foods are being added
• Impermeable to contamination
Disadvantages: (Glass) - Correct Answers -• Fragile/easily broken
• Heavy
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