1.5 Water: Temperature and Heating Equipment

1. License Information:

2. Title

   Food Preparation Lab Manual for FSHN 1150
3. Author

   Iowa State University Department of Food Science and Human Nutrition
4. License

   CC BY-NC 4.0

Commonly used water temperatures in an open (regular) saucepan

Lukewarm temperature (30–37°C; °F)

1. Does lukewarm water feel warm or cool to the touch?
2. What is normal body temperature?

°C; °F.

Simmering temperature (85–99°C; _____°F)

1. Describe the surface appearance of simmering water:

Boiling temperature (100°C; °F)

1. Describe the surface appearance of water at… a slow boil:
2. …a rapid (rolling or fast) boil:

Fast or Slow Boil

1. What are the advantages of cooking foods at a slow boil rather than a fast boil?
2. What are the advantages of cooking foods at a fast boil rather than a slow boil?
3. When might water boil at less than 100°C; or more than 100°C?

Double Boiler

1. What happens if there is too much water in the bottom of the double boiler?
2. List appropriate uses for a double boiler:

Steamer

1. How would the rate at which foods cook in a steamer compare to the rate in a saucepan? Explain.
2. List appropriate uses for a steamer:

Pressure Saucepan or Cooker

1. 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.

2. 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.
3. 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.

4. List appropriate uses for a pressure saucepan.