Citygate: A point or measuring station at which a distributing gas utility receives gas from a natural gas pipeline company or transmission system. Coke oven gas: The mixture of permanent gases produced by the carbonization of coal in a coke oven at temperatures in excess of 1,000 degrees Celsius.
Baking Sweet Potatoes. 1  Preheat oven to 400Â°F. 2  With a fork, pierce sweet potato skin 5-6 times. 3  Place on baking sheet lined with foil. 4  Bake until tender, 45 minutes to 1 hour.
Key Points. 1  Bake them in the oven at 400 Â°F (204 Â°C) for 45 - 60 minutes. 2  Microwave them on HIGH, uncovered, for 8 to 10 minutes. 3  Cook them in a slow cooker on LOW for 4 to 6 hours in 1/4 to 1/2 (60 to 120 milliliters) of water.  Boil peeled and cubed sweet potatoes for 12 minutes.