WHY SHOULD ONE USE REAL CANNING JARS ONLY?
Recycling commercial glass jars, such as mayonaise or pickle jars, for use in home canning may sound practical, but it greatly jeopardizes the preserving process and increases the risk of injury. These jars are simply not designed for canning and are not made with the same sturdy quality as jars made specifically for canning. They may not withstand the lengthy exposure to high temperatures. Clean, glass CANNING JARS, free of chips and cracks, are the ONLY containers you should use for canning. Each jar must have a two-piece lid that consists of a NEW metal vacuum lid and a new or used screw ring. They are the only acceptable lids to use to insure a proper seal. Furthermore, twenty-four hours after the canning process, when the jars have thoroughly cooled, the screw rings must be removed from the jars prior to storing. Screw rings left on jars may rust. If a screw ring is stuck, DO NOT force it and risk breaking the seal. Leave it in place. And never tighten a screw ring further after p
