Quart Canning Jars Quart canning jars are containers, usually made of tempered glass, which are used for preserving foods by the process known as canning. This process heats the canning jars and the food placed inside them under pressure to destroy as many mold spores and bacteria as possible while preserving the nutrients inside the food. This process extends the shelf life, or the amount of time before the food becomes inedible due to spoilage, of the foods inside the quart canning jars. Quartcanningjars.com~Site InfoWhoisTrace RouteRBL Check
