When we first started creating our emergency kits for our own house, we learned something after the first few months. The food expiration dates of the items in the kit invariably would vary by product, and there needed to be a system for keeping track of what was still good and what needed to be replaced.
While some items in the kit, like pots and pans, have an unlimited shelf life, food, water and other perishable items will need to be replaced on a regular basis. (Does water expire? Sort of. Since plastic water bottles can degrade over time, you should replace your water regularly.)
In setting up our own kit for our own household, we found it invaluable to keep a list of every item in the kit in a binder, and track each item's expiration date.
After lots of trial and error, we have landed on a format that works for us based on a Google spreadsheet. If you'd like to make a copy of it for your own use, drop us your email below and we'll send it to you.