[wenda]

Two days ago I tried canning for the first time- it was cherry preserves.
I did the hot bath method, and followed the instructions in my book. One jar came out fine, but the other one broke at the bottom and all the contents seeped out. Why did this happen?

 

[wenda]

My jar was Kerr, I had a rack, the food was hot, i feel like the lid wasn't too tight... honestly it could have been a crack. My grandpa brought me some jars that were over 20 years old!