Granite Ware has all the canning products, tools and accessories to do it safely and successfully. The Granite Ware 20-quart Pressure Canner and Pressure Cooker/Steamer is a professional-quality tool, UL-listed, and made of hard anodized aluminum, with stay-cool handles and a locking stainless steel lid. An accompanying rack fits down into the pot to keep jars up off the bottom, and comes with folding handles for easy raising and lowering. The rack holds up to 7 one-quart jars, 8 one-pint jars or 24 half-pint jars. The steamer insert fits into the stepped portion of the vessel about 1/3 the way up from the bottom to hold foods out of the cooking liquid and can handle all your large capacity steaming needs – for tamales, seafood, pulled pork, pot roast, ribs, and more. The pressure canner achieves the high temperature required for safely processing foods with the USDA endorsing it as the only safe method for canning meats, poultry, and low-acid vegetables. It can also be used as a large pressure cooker for any meal that needs to come together quickly. This Granite Ware pressure cooker preserves flavor and nutrients, tenderizes tough cuts of meat, and cooks many foods in one-third to one-tenth the time compared to traditional methods, and is large enough to create family-sized meals with ease. The unit features a pop-up pressure indicator, locking the lid in place. It cannot be opened while the canner is pressurized, even if there is just one psi of pressure. The vent pipe is located in the center of the lid and if it fails or clogs, there is an additional black capped safety valve set to go off and a second all metal safety valve will exhaust residual pressure while sounding a whistling alarm. The sturdy lid locks in place during canning or cooking with the lid gasket sealing ring forming a pressure tight seal between the body of the canner and the cover during use. The Granite Ware pressure canner, steamer, and cooker uses the UL-recommended adjustable 3-piece pressure regulator system. The pressure regulator is calibrated for three different pressure levels at 5 psi, 10 psi and 15 psi, which is ideal for canning at different altitudes. Includes Canning Jar Rack and Steamer Trivet (canning jars are not included).