Why is food cooked
To make it safe to eat
To improve shelf life
To develop flavours
To improve texture
To give variety in diet
What are the 3 heat transfers
Conduction
Convection
Radiation
What is conduction
Transfer of heat energy through vibrations
When pan is placed on hob the heat energy causes particles to vibrate
Frying
What is convection
Transfer of heat energy through gases or liquids
Boiling
What is radiation
Transfer of heat energy through waves of radiation
Toasting