Question

Stainless steel is considered as a metal of choice for

• A. Horse's shoe
• B. Dairy utensils
• C. Stanchion
• D. Electric dehorner

Hint:

Grade 304 stainless steel is the standard food-grade alloy used in dairy plants because of its durability and resistance to chemical sanitizers.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Milk is a highly perishable biological fluid that easily absorbs off-flavors and supports rapid bacterial growth.
Dairy equipment must be made of materials that are non-reactive, non-porous, corrosion-resistant, and easy to sanitize.

Step 2: Detailed Explanation:
Stainless steel (particularly grade 304 or 316) is the standard material of choice in the dairy industry.
It contains chromium and nickel, which form a passive oxide layer that resists corrosion from lactic acid and alkaline cleaning chemicals.
Its smooth surface prevents bacteria from forming biofilms and does not leach trace metals into the milk, which could catalyze lipid oxidation and cause metallic off-flavors.
Horseshoes are typically made of mild steel or aluminum for malleability.
Stanchions (locking head gates) are usually constructed from galvanized iron for cost-efficiency.
Electric dehorners utilize high-resistance heating elements made of nichrome or copper alloys to conduct heat.

Step 3: Final Answer:
Stainless steel is the preferred metal for manufacturing dairy utensils and processing equipment.