Before we get started: For those who are new to preparedness, using an emergency generator to power an electric stove or microwave is not a good allocation of resources. Stoves and microwaves use a lot of power in a short amount of time. It's much more practical to use other means to heat/cook your food.
- Always be careful to use options inside or outside as appropriate. Don't end up asphyxiated from cooking fuel fumes or burn your house down while trying to make a hot meal.
- Make sure you have cooking equipment suitable for your heating option of choice.
- Practice with your method(s) of choice until you can reliably produce a meal. Don't use it for the first time in an emergency (except for the “heat themselves” food items).