Pressure canning is the only method recommended safe by the U.S.D.A. for low-acid foods such as vegetables, meats and fish.No matter how high you turn up the heat, boiling water cannot surpass 212°F (even lower at high altitudes). All-American's High-Quality Pressure Canners bring jar temperatures up to 250°F at just 15 lbs sq. in. 100 percent bacteria kill guaranteed! Simple and safe to use 1-year warranty, UL approved 15-1/2 qt Canner Jar Capacity: 10 pt or 7 qt Dimensions: 7-1/2"H x 12-3/4"ID (12-1/2"H with lid) Weight: 17 lb USA madeNote: Glass-top ranges are not designed for the high heat of canning.