Baladiya should be more concerned with these items instead of things like salt and water (the dumbest thing in the world... expiry dates on salt, water, sugar and spices).

I made a test some time ago:

Bought a sliced bread... kept it in the kitchen counter for 3 months... after that i opened the pack (which was not hermetically sealed) and guess what? The bread was perfectly fine... just like the fries and burgers from McDump and BK after 3 months in the same conditions (temperature between 25 and 35 celsius, air humidity 10-20% - all of these increased when someone was cooking)