We do our best to provide accurate estimates of cooking times. However sometimes the estimate could be off. For example, if the food was recently frozen and that was not indicated in the app. Each piece of food is a little bit different - meats are a complex mesh of proteins, fat cells, and other tissue - which is what makes cooking much harder than heating a solid block of aluminum, for example.
If you think the estimate was way off, please let us know so we can figure out what happened: email@example.com.