String Bean Physics

This is actually the Physics of string beans, onions, chicken, and their specific sauce from Panda Express. As I let the feeling of freedom from the arrival of Christmas Break, I got dinner with my mom at Panda Express on Saturday night. As I held my three item plate in its bag, I discovered that I couldn't keep the little container holding the string bean chicken from falling over and spilling sauce all over the bag, so I decided to hold it. After a few minutes of holding the rather warm container of food, I thought to myself, "Hey! Physics! Heat!" The small container of food, which was kept hot in its tray was transfering some of this heat to my hand. To start at the beginning of the process: something, probably electricity, heated water in large metal trays, providing the water with heat. This heat is then easily transfered to the metal trays above it, raising its temperature rapidly to a high temperature because metal has a low specific heat, requiring relatively little energy to raise its temperature. This heat is then flows to the food in the metal trays, which was put into a small paper container and given to me. The heat from this food then flowed to my hand, making my hand feel hot. After a while, the food didn't feel so hot anymore. This meant that the system consisting of my hand and the food container was reaching equilibrium, where both the food temperature and my hand's temperature would be the same. However, I'm pretty sure that it didn't, which is a good thing because the food was very hot to begin with, so it probably would have burned my hand, plus the food wouldn't have been very hot anymore :-( . I'm not sure whether this was an isobaric or isochoric process, or neither. I don't think my fingers expanded, but perhaps they did, and I don't think that the pressure inside by fingers increased either, but I don't know. Maybe it did. Scary.....