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.
Directions. 1  1 Heat oven to 400Â°F. Line cookie sheet with foil. 2  Place sweet potatoes on cookie sheet. 3  Roast 1 hour or until tender. 4  Cut potatoes in half. 5  Scoop out pulp into medium bowl; discard skins. 6  Reduce oven temperature to 350Â°F.