 at preparewithjoe.com preparewithjoe.com every food kit offers over 2 000 calories every day plus with ultra durable four-layer packaging it lasts up to 25 years in storage or as many kits as you need save 50 in every single one that you order free shipping is included i've got some of these kits in my house there's no reason not to have these i can't think of one good reason why you wouldn't have a backup supply look i hope you never need it but if you do you've got it