I made some mandarin marmalade today, but I got rid of my dented stock pot so I couldn't process them in a water bath. I decided to just freeze the jars, but they seem to have sealed themselves in the freezer. I didn't sterilize the jars as well as I usually do, since they were going in the freezer, so I'm a bit worried. Should I pop the lids off the jars? Please, freezer jam experts, help!