A month is good for food. But it's always good to have extra dry/canned foods/MREs to go another couple of months if needed. Water is vital, but if you don't want to stock up on this, you can still use life straws or get regular bleach. A standard bottle of bleach can disinfect 10s of thousands of gallons of water if not much much more. It's very important to use the correct ratio because drops will go a LONG ways. They have many charts available online to do the proper mixture ratio.
Just don't overbuy and waste items that will go bad before you get a chance to consume it.
A month is good for food. But it's always good to have extra dry/canned foods/MREs to go another couple of months if needed. Water is vital, but if you don't want to stock up on this, you can still use life straws or get regular bleach. A standard bottle of bleach can disinfect 10s of thousands of gallons of water if not much much more. It's very important to use the correct ratio because drops will go a LONG ways. They have many charts available online to do the proper mixture ratio.
Just don't overbuy and waste items that will go bad before you get a chance to consume it.