Presto Aluminum Pressure Cooker/Canner Pressure canning is the only method recommended safe by the USDA for low-acid foods such as vegetables, meats, and fish. The easy-to-read gauge automatically registers a complete range of processing temperatures. Air vent/cover lock allows pressure to build up only when the cover is closed properly and prevents the cover from opening until pressure is safely reduced. Pressure canners also double as water bath canners for preserving fruits, jams, jellies, pickles, and salsas. Constructed of extra-strong, warp-resistant aluminum and suitable for use on regular and smooth-top ranges. Includes Cooking/canning rack and complete instruction and recipe book. Capacity 23 qt, Material Aluminum, Size Holds 7 qt, 20 pt, or 24 half pint Jars, Color Silver/Black, Pkg Qty 1, Package Type Box