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.
DONâT! Youâll end up with the potato getting steamed in the foil instead of just baked. You may as well just cook it in the microwave. Place the potato directly on the oven rack. Bake for 40 to 60 minutes, depending upon the size of the potato.Potatoes are as hard as a brick when they are raw. By the time itâs cooked youâll be able to squeeze it.he oven needs to be really hot, 400 degrees hot, when you stick the potatoes in it. So before we go any further, go turn the oven on to 400 degrees to preheat. (This could take up to 15 minutes, maybe even longer depending on your oven.). All potatoes need to get washed first. A vegetable scrub brush works beautifully.
Baking potatoes requires a temperature range between 300 and 400F, depending upon the type of oven you use. Medium size potatoes will have to be baked for 45 minutes at 400F or for 60 minutes at 350F or 90 minutes at 325F in a regular oven. If you use convection ovens, you will have to bake the potatoes for 45 minutes at 375F or 60 minutes at 325F or 90 minutes at 300F. Convection ovens cook faster than regular ovens so the rule of thumb is to set the temperature in convection ovens at least 25F lower than you would set in a regular oven. The higher the baking temperature, the lesser the time required for baking. Baking time also depends on the size of the potatoes.