Can I put the pot in the refrigerator?

Yes,You can put the pot in the refrigerator. They can go in the refrigerator. Let the pot & food cool down a little bit, if possible to room temperature, before putting it into the refrigerator. And if you want to take it out to heat the food in the same pot, take it out a little ahead of time to sit outside and come close to room temperature before putting it on the stove.