Heat Transfer

Question 1

What is heat transfer?

Answer 1

Heat transfer describes the flow of heat (thermal energy) due to the temperature differences and the subsequent temperature distribution and changes.

Question 2

What is convection?

Answer 2

Convection is the circular motion hat happens when warmer air or liquid (which has faster moving molecules, making it less dense) rises while the colder air drops down.
Examples - frying, steaming

Question 3

What is conduction?

Answer 3

Conduction is when something hot touches something cooling thing that are heated up.
Examples - blanching, boiling

Question 4

What is radiation?

Answer 4

Radiation is where the heat and light wave (infra red waves) strike and penetrate the your food. There is no direct contact between the heat source and the cooking food.
Examples - grilling, barbecuing

Question 5

What are some cooking methods?

Answer 5

Grilling 
Boiling 
Barbecuing
Roasting 
Deep fat frying 
Steaming 
Blanching