Hydrogen, oxygen and carbon make up about 99% of the average human. I'm going to cheat a little and leave out the other 1%, which is made up of trace elements (that is, stuff there's only a trace of in the body). Then, let's assume an average adult weighs 70 kilograms.
1 Bake the potatoes: You can bake the potatoes directly on the oven rack, or you can place them a few inches apart on a foil-lined baking sheet. 2  Bake the potatoes for 50 to 60 minutes.3  Flip them over every 20 minutes or so and check them for doneness by piercing them with a fork. This allows steam to escape from the baking potato. 2  Bake the potatoes: You can bake the potatoes directly on the oven rack, or you can place them a few inches apart on a foil-lined baking sheet. 3  Bake the potatoes for 50 to 60 minutes.
Best Answer: Cooking Temperatures for Perfect Baked Potatoes Everytime: Conventional or Regular Oven: Medium-size potatoes (about 5 ounces or 150 grams each) 45 minutes at 400 degrees F. 60 minutes at 350 degrees F. 90 minutes at 325 degrees F. Place the potato directly on the oven rack in a preheated oven. Potatoes are done if tender when pierced with a fork and the internal temperature reaches 210 degrees F. --------------------------------------... Bake on racks of oven until tender. The higher the oven temperature, the shorter the cooking time will be and the crustier the skin.