Question

Identify the thermal processes in food above chilling: A. Roasting B. Baking C. Freezing D. Blanching E. Pasteurization

• A. C Only
• B. A, B, C Only
• C. A, B, D, E Only
• D. C, D, E Only

Hint:

Remember that chilling involves lowering temperatures to slow bacterial growth, while thermal processes like roasting, baking, blanching, and pasteurization involve raising temperatures for cooking or preservation purposes.

Answer 1

The Correct Option is C

Step 1: Concept
Chilling refers to the process of reducing the temperature of food to slow down bacterial growth. Thermal processes such as roasting, baking, blanching, and pasteurization involve heating food to specific temperatures to achieve various outcomes like cooking or preserving.

Step 2: Meaning
The question asks for thermal processes that occur above chilling, which means these processes involve raising the temperature of food beyond what is achieved during chilling. Chilling typically involves cooling food to around 4°C (39°F) or lower.

Step 3: Analysis
- Roasting: This process involves cooking food at high temperatures (usually between 180°C and 250°C or higher). It significantly raises the temperature of the food. - Baking: Similar to roasting, baking is a thermal process that cooks food by applying heat. The typical range for baking is around 160°C to 230°C. - Freezing: This involves cooling food to temperatures below freezing point (0°C or 32°F). It does not raise the temperature of the food; hence, it is not above chilling. - Blanching: This process briefly immerses food in boiling water for a short period. Boiling water has a temperature of around 100°C (212°F), which is well above the chilling range. - Pasteurization: This involves heating milk or other liquids to kill harmful bacteria and extend shelf life. The typical pasteurization process heats the liquid to about 72°C for at least 15 seconds, which is also above the chilling temperature.

Step 4: Conclusion
All of the processes listed except freezing raise the temperature of food beyond what is achieved during chilling. Final Answer: (C)