Save time, energy and water! This unbelievably easy and neat way to can foods requires only 3 pints of water as it steam-cooks fresh or frozen foods. Cuts pre-heating time by 50%! And since steam is hotter and more efficient than boiling water, it will preserve the flavor and texture of canned fruit much faster. Cover converts to a 15 qt. kettle or soup pot. Base and rack make an excellent roaster. Aluminum construction will not chip or rust. Instructions included. Not recommended for low-acid vegetables and meat.