8. My Jars Didn't Seal! What Happened? – Food in Jars
Link: https://foodinjars.com/blog/my-jars-didnt-seal-what-happened/
Description: WebJul 13, 2018 · If the entire batch has failed to seal, the best method is to open the jars, reheat the jam, prep the jars, use new lids, and reprocess. If you have just one or two jars that didn’t seal and you don’t want to go …