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.