Again, many theories exist as well as hundreds of techniques. For collecting food, I recommend the Plus One method. That is, when you buy your groceries buy one (or more if you can afford it) additional can of something you are getting anyway. I am attempting large storage with 5 gallon buckets, but I won’t know if it works for about 20 years. Get back to me then, and I’ll let you know how it works.
But seriously, you are supposed to use what you store and use it from the oldest stored first.
What this means is you buy 4 cans of peas this month. Write the date on the cans and store. Next month you buy 4 more. Write that date on the cans and store them behind the first four. So as you use the peas you will use the oldest first and on to the next oldest and so on.
Depending on where you live, storing a well-organized pantry can be difficult. You may just not have enough space. If you do, there are some survival companies out there who sell metal racks that are perfect for this kind of storage. If not you may have to get creative. I’ve heard of bed lifts that will raise the frame of your bed a few inches so that you could store huge quantities there.
Do not store in your garage or anyplace that takes a huge amount of heat in the summer. This will destroy the life span of your food supply.
Actually when it comes to anything perishable or delicate the same rules apply: Store in a cool dark place out of direct sunlight and out of direct contact with the floor.