Originally posted by Maelstrom:

I like to use old foods for when I'm just tooling around in my base so I don't die from a slip-and-fall or get irradiated to death by the eitr refinery or get bonked by the odd troll I have to go outside and shoo away.

If there's a raid I have to deal with I can use a pukeberry and swap to my current food.

This! Other than the pukeberries (never used them). I tend to not eat way too often, so having cheap/free food is very useful.