If you plan to store food for a natural disaster or emergency, you should store at least one gallon of water and 2000 calories of food per day for a single person, according to FEMA (Federal Emergency Management Agency). Accumulate enough food to provide at least 2000 calories and 1 gallon of water per day, per person in the event of an emergency or natural disaster. The minimum storage requirement for the 72-hour emergency kit, suggested by the Federal Emergency Management Agency, is 6000 calories and 3 gallons of water per person. The Centers for Disease Control and Prevention (CDC) recommends storing 1 gallon per day for each person and, if possible, recommends creating a two-week supply.
Don't forget to store more water if you have pets. If you have enough advance warnings about a potential power outage, you can extend the storage time of food in a freezer by filling empty spaces with frozen water. According to FEMA, being prepared means having a 72-hour supply of food, water and non-perishable supplies that lasts three days. Bacteria in food grow rapidly at temperatures between 40 and 140 degrees Fahrenheit, and if you consume these foods, you can get seriously ill.
Use leftover canned foods after 3-4 days of refrigeration, unless they contain meat; canned foods containing meat, poultry, or fish should be used within 2 days. The best-case scenario is that it helps you save money and rest a little easier knowing you have food you can trust. Once you have your 72-hour kit connected, I suggest you go ahead and save at least a two-week supply of food. Think that storing food and preparing it is a waste of time, see The Ready Squirrel article, 37 Reasons Why Preparing Isn't a Waste of Time.
Military and camping supply tents are good sources of some compact, well-preserved foods that are good choices for emergency preparedness kits. If you're not sure what to include on your wholesale shopping list, see “10 Foods That Can Be Preserved for Years. You never know if and when a tragedy will occur, so it's imperative to be prepared to provide food for your family. If you include canned food in your emergency food supply, inspect your supply regularly to make sure there are no rusty, leaking, bulging, or heavily dented containers and that there are no broken seals.
There are many food storage options that will last long term and that you won't have to worry about spoiling for many years to come.