Un Locker The Blo Cker How Long Could Jello Last Not Un-refrigerated?

How long could Jello last not un-refrigerated? - un locker the blo cker

Umm i am hatching a plan to take things all the favorite kids in her locker and she loves Green Jello I do not know how long it will last in his locker. Do you believe that a school could take days?