Pressure canning is the only canning method recommended safe by the USDA for low-acid foods such as vegetables, meats, and fish. The easy-to-read dial gauge automatically registers a complete range of processing pressures. Air vent/ cover lock allows pressure to build only when the cover is closed properly and prevents the cover from opening until pressure is safely reduced. The Presto* 23-Quart Pressure Canner also doubles as a water bath canner for preserving fruits, jams, jellies, pickles, and salsas. Canner is constructed of extra strong, warp-resistant aluminum and is suitable for use on regular and smooth-top ranges. Includes cooking/canning rack and complete instruction and recipe book. Presto* 23-Quart Pressure Canner 23-quart liquid capacity (21.8 liters) Stock No. 01781 *"Presto" is a registered trademark of National Presto Industries, Inc. in the United States of America and/or other countries.