amount of food to store

[Big Wall]

I agree with everything above. I think you want to think more about calories per day than about weight per day.

[Wulf202]

+1 to the above.

Another concern is your family size and #10 cans of food that can spoil. If you get a can and can't finish it without transferring/refrigeration buy smaller cans.

[Irving]

Also consider how many calories you'll need compared to now where you can just sit on the couch while the microwave cooks your food, or when everything is shut down and you're having to do everything manually and cook your food over an open flame. It might not be quite as many calories as if you were trying to live in the woods or something, but I still think it would be significantly more than your average daily caloric requirement today.

[ldmaster]

Take a look through their archives (they are all online) and you don't have to join. The LDS book has easy guidlines, and you can download it for free.

Variety and more variety are key. 5 gal buckets, gamma seals and mylar liners and you're good for years.