Candle warmers and other devices such as fondue pots may be used if no other heat sources are available. Use safety precautions with these devices. Never use fuel-burning camp stoves or charcoal burners inside your home, even in a fireplace. Fumes from these stoves can be deadly. Do not cook frozen foods unless you have ample heat for cooking.
Most frozen foods require considerably more cooking time and heat than canned goods.
Conserve Water Save liquids from canned vegetables. Substitute these for water in cooked dishes. Drain and save juices from canned fruits. Substitute these for water in salads and beverages. Sources of Drinking Water One of your most crucial needs is a supply of safe water.