There's an episode of Modern Marvels which shows the "banana room" at a national distribution center for a grocery chain. They have a gigantic environmentally

There's an episode of Modern Marvels which shows the "banana room" at a national distribution center for a grocery chain. They have a gigantic environmentally controlled room where they can delay how quickly a banana becomes ripe. It's the classic "big bucket being filled by a hose at rate X and being drained at rate Y" highschool physics problem, implemented using bananas :)