The dial has a random chance of going down every once in awhile because your stove isn't the best one. This keeps the player having to pay attention even when they're cooking the soufflé haha. As for the heat requirements, we based it on actual recipes and recommended temps etc. The temps required are probably higher than you'd expect. On Stir Fry in particular, you want to keep the heat really high but also have to keep shaking the wok. That aerates the food so that you get a nice even browning without A) burning it or B) making it really greasy.