Crock pot oats - help

I just made my second batch of crock pot oats. The first time I made them I did it overnight and turned it off - came back to it after it had cooled and stored it some tupperware.

This time I have a time crunch so I cooked them and they just finished and I portioned it out into mason jars. Kind of nervous because it's still warm - will I damage my jars? Should I leave the top off? Should I put them in the fridge now or leave them in the sealed jars overnight and then put them in the fridge?

Help me!