Question

As per FPO which of the following is not true for canning of fruits?

• A. No preservative shall be added
• B. Drained weight not less than 50%
• C. The can shall not show any positive pressure at sea level
  (4) Head space in can should be more than 1.6 cm
• D.

Hint:

FPO guidelines for canned fruits ensure quality:
Preservatives: Generally not allowed (heat sterilizes).
Drained Weight: Minimum fruit content (e.g., >50%).
Can Pressure: Should have vacuum (no bulging).
Headspace: Needs to be adequate but not excessive. Typically 0.6-1.2 cm. "More than 1.6 cm" is too large.

Answer 1

The Correct Option is D

Step 1: Headspace should be small, just enough to allow proper vacuum formation on cooling.
Step 2: A headspace greater than 1.6 cm is excessive, causing oxidation and underfilled cans.
Step 3: The other three statements (no preservative, drained weight 50%, no positive pressure) are correct FPO norms.
Step 4: Correct answer: Head space in can should be more than 1.6 cm (this is NOT true).