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Chemical Engineering
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Food Process Engineering MCQ
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What does "hermetically sealed" mean in food packaging?
What does "hermetically sealed" mean in food packaging?
A. Airtight to prevent contamination
B. At ambient pressure
C. Permeable to gases
D. Only sealed with plastic film
Explanation:
Hermetic seals block air, moisture, and microbes.
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Food Process Engineering MCQ
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Chemical Engineering
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