Milk Powder Manufacturing Sequence

The manufacture of milk powder involves several key steps, each crucial for producing a safe, stable, and high-quality product. Arranging these processes in the correct operational order is essential.

Process Steps Explained

1. Clarification (e): This initial step removes physical impurities like dirt and sediment from the raw milk using a clarifier or centrifuge.
2. Fat Separation (f): Cream is separated from the milk to standardize the fat content required for the final milk powder.
3. Pasteurization (a): The milk is heated to a specific temperature for a set time to destroy harmful microorganisms, ensuring safety.
4. Evaporation (b): Water is removed from the pasteurized milk under vacuum to concentrate the milk solids, typically reducing the water content by about 50-60%.
5. Roller Drying (g): The concentrated milk is applied as a thin film onto the surface of large, steam-heated rotating cylinders (rollers). The heat dries the milk into thin flakes.
6. Milling (c): The dried flakes from the roller dryer are ground into a fine powder of the desired consistency.
7. Packing (d): The final milk powder is weighed and packed into airtight containers or bags to prevent moisture absorption and oxidation.

Correct Sequence

Based on the standard manufacturing flow, the correct sequence of the given processes is:

Clarification (e) -> Fat Separation (f) -> Pasteurization (a) -> Evaporation (b) -> Roller Drying (g) -> Milling (c) -> Packing (d)

This corresponds to the order: (e), (f), (a), (b), (g), (c), (d).