1.5 Water: Temperature and Heating Equipment
Objectives
- Relate descriptive temperature terms to the observable changes in water at various temperatures.
 - Compare heating equipment and determine the best uses for each.
 
Commonly used water temperatures in an open (regular) saucepan
Lukewarm temperature (30–37°C; °F)
- Does lukewarm water feel warm or cool to the touch?
 - What is normal body temperature?
 
°C; °F.
Simmering temperature (85–99°C; _____°F)
- Describe the surface appearance of simmering water:
 
Boiling temperature (100°C; °F)
- Describe the surface appearance of water at… a slow boil:
 - …a rapid (rolling or fast) boil:
 
Fast or Slow Boil
- What are the advantages of cooking foods at a slow boil rather than a fast boil?
 - What are the advantages of cooking foods at a fast boil rather than a slow boil?
 - When might water boil at less than 100°C; or more than 100°C?
 
Double Boiler
- What happens if there is too much water in the bottom of the double boiler?
 - List appropriate uses for a double boiler:
 
Steamer
- How would the rate at which foods cook in a steamer compare to the rate in a saucepan? Explain.
 - List appropriate uses for a steamer:
 
Pressure Saucepan or Cooker
- At what temperature does water boil under:
 
- 
- 5 lbs. pressure? 109°C; °F.
 - 10 lbs. pressure? °C; 240°F.
 - 15 lbs. pressure? 121°C; °F.
 
 
- How would the rate at which foods cook in a pressure saucepan compare to the rate at which they cook in a regular saucepan? Explain.
 - Temperature decreases by 1°C for each 960-foot increase in altitude. At what temperature would water boil in Denver, Colorado (altitude approximately 5,000 feet above sea level)?
 
°C; °F.
- List appropriate uses for a pressure saucepan.