SUMMER 2025: PLEASE NOTE THAT DUE TO HIGH OUTSIDE TEMPERATURES AIR IN JARS MAY EXPAND DURING TRANSIT AND CAUSE THE BUTTON ON TOP TO APPEAR "POPPED" PLEASE PUT THESE JARS IN THE REFRIGERATOR OR ALLOW THEM TO SIT AT ROOM TEMPERATURE. THE BUTTON SHOULD GO BACK DOWN, IF IT DOES NOT GO BACK DOWN TO THE "SEALED" POSITION, PLEASE EMAIL US AS THE JAR WILL NEED REPLACED