CARBON TETRACHLORIDE is a solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed)
1 Don't preheat the oven. 2  Prick your sweet potatoes each 2-3 time with a fork, then place them directly on the oven rack in the middle of the oven, above the foil. 3  Turn the oven on to 425. 4  Bake for 45 minutes for sweet potatoes/yams that are 2-3 inches in diameter. For super large sweet potatoes, bake for an hour and 15 minutes. 2  After the time has elapsed, don't open the oven but turn it off. 3  Let the sweet potatoes sit in the oven for at least 30 minutes but up to an hour. 4  Remove from the oven and eat immediately, or remove the skin and store in a container in the fridge.
Preheat oven to 450 degrees. Line cookie sheet with tin foil. Scrub sweet potato under running water and dry well with paper towel, this prevents it from steaming rather than properly baking. Poke all over with fork, get out some aggressions! Place sweet potatoes on cookie sheet and put in oven for 30 minutes.