BARE-MINIMUM Food storage requirements for 1 adult male for 1 year Appx. 2,300 calories per day. (only 695lbs total) This will keep you fed, but leave you hungry.
You should use food grade packaging for storing anything you intend to eat. A food grade container is one that will not transfer noxious or toxic substances into the food it is holding.
The 9 Most Nutrient-Dense, Long-Term Storage Foods to Stockpile
There are many foods that store well, and many foods that are super-nutritious or have high caloric value, but the number of foods that store well and are especially nutrient- and calorie-rich are much fewer.
A water ration of as little as a pint per day has allowed life raft survivors to live for weeks, but a more realistic figure is 1 gallon per person per day for survival.
After clean water and shelter from extreme weather, organic emergency food is the most important things to have in a crisis. It keeps you fed, energized, alert and motivated.