Question

The......... sterilizer is used for sterilization of canned milk.

• A. Orbitort
• B. Hydrolock
• C. Ekelund hot air
• D. Hydrostatic

Hint:

Agitation = Better quality for milk. Orbitort uses the "induced convection" principle by spinning the cans to speed up sterilization.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The question asks which specialized industrial sterilizer is commonly used for processing canned milk products (such as evaporated milk).

Step 2: Detailed Explanation:

• Sterilization of milk in cans is challenging because milk is highly heat-sensitive. High temperatures for long periods can cause caramelization (Maillard reaction) and "burn-on" at the inner surface of the can.

• To overcome this, agitating retorts or sterilizers are used. Agitation increases the rate of heat transfer within the can, allowing for shorter processing times and better quality.

• The Orbitort is a continuous agitating pressure sterilizer. In this system, cans are moved through the sterilizer and rotated around their own longitudinal axis. This creates high turbulence inside the can.

• For canned evaporated milk, the Orbitort ensures uniform heating and prevents the separation of solids, maintaining a smooth consistency and preventing a "cooked" flavor.

• Hydrostatic and Hydrolock sterilizers are used for large-scale continuous processing of various canned goods (like soups or vegetables) but are less specific to the high-agitation needs of milk compared to the Orbitort or similar agitating systems.

Step 3: Final Answer:
The Orbitort is the agitating sterilizer used for canned milk processing.