Question:
A minute leak in a can that permits air to move in and out but does not allow microorganisms to enter is:
A minute leak in a can that permits air to move in and out but does not allow microorganisms to enter is:
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While a breather doesn't allow microbes in, it destroys the vacuum. A simple way to detect it is by a "dull" sound when the can is tapped, instead of a "ringing" sound.
Updated On: Jul 4, 2026
- Hard swell
- Springer
- Breather
- Flipper
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The Correct Option is C
Solution and Explanation
Concept:
Canned food can undergo various types of physical or microbial spoilage categorized by the shape of the can.
• Swells: Gas production creates internal pressure (Hard or Soft).
• Flipper: Can appears normal but ends bulge when struck.
• Springer: One end bulges; pressing it causes the other end to bulge.
Step 1: Analyzing the "Breather" condition.
A "Breather" is a can with a very tiny defect, usually at the seam. The hole is so small that it acts as a filter.
Step 2: Physical behavior of the can.
Air molecules are small enough to pass through the leak. However, bacteria and molds are too large to traverse the opening.
Step 3: Determining the outcome.
Because pressure is equalized, the can does not swell. However, the food may still undergo chemical oxidation due to air exposure. Final Answer: (C)
• Swells: Gas production creates internal pressure (Hard or Soft).
• Flipper: Can appears normal but ends bulge when struck.
• Springer: One end bulges; pressing it causes the other end to bulge.
Step 1: Analyzing the "Breather" condition.
A "Breather" is a can with a very tiny defect, usually at the seam. The hole is so small that it acts as a filter.
Step 2: Physical behavior of the can.
Air molecules are small enough to pass through the leak. However, bacteria and molds are too large to traverse the opening.
Step 3: Determining the outcome.
Because pressure is equalized, the can does not swell. However, the food may still undergo chemical oxidation due to air exposure. Final Answer: (C)
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