The only method recommended safe by the US Department of Agriculture for canning vegetables, meats, poultry, and seafood Doubles as a boiling-water canner for preserving fruits, jams, jellies, pickles, and salsa; Handy as a large capacity pressure cooker Constructed of warp-resistant heavy-gauge aluminum for fast, even heating; Works on regular and smooth-top ranges; Extended 12-year limited warranty Deluxe pressure dial gauge registers the complete range of processing pressures; This precise measurement is especially important at higher altitudes Extra-large size is great for big canning jobs; Includes canning/cooking rack and complete 76-page instruction and recipe book Mason Jar Capacity: 26 Half-Pints, 20 Pints, 7 Quarts