Quote Originally Posted by Aloha_Shooter View Post
The main thing would be that the baking powder or soda in the mix loses effectiveness over time so you could bake it and end up with a brick instead of a cake. I wouldn't worry about it -- the low humidity in Colorado seems to add to shelf-time for things like this. Just don't bank on that cake mix working properly for a party or something -- save it for a treat for your family or to make stuff for the school/church bake sale that won't hurt if you end up throwing it out.
Not the same for mac n cheese. spouse opened up a box "she forgot" was in the rotation, exp 05/2009 The cheese almost got her, were it not for our pups, on the job and neutralizing the threat. Some nasty shit expired processed cheese is i tell ya.