I first purchased the 23 qt Presto canner. Absolutely LOVE it by the way. The 23 qt tho is larger than I need for some jobs so I purchased this 16 qt one to complement my canner collection! It's perfect! I can easily handle this smaller pot. Once it has completed processing it's light enough for me to move it (as instructed to do in the accompanying instruction book) to a cutting board for cooling down. It heats and cools faster than its larger sibling. Honestly, in hind sight, unless you're doing a marathon canning session, this 16 qt is perfect. I kind of wish I had started with it instead of the larger one.
Oh, I do use both canners on my glass top stove. I called the manufacturer and asked if I could use a canner on my stove. They said no. But not because o fthe weight (my stove top is good to 50 pounds) or because of the burner cycling to keep the temperature up. They said no because it may scratch the ceramic top. So, I polish my stove top well before a canning session and I carefully check the canner bottom to be sure that there is nothing that would scratch the stove top. Then I carefully place the pot on the appropriate burner making sure it is positioned correctly, pot base centered on burner. THEN I add the 3 qt of water (and vinegar) to the canner and turn on my burner. I never move the canner around on my stove top. Once it's finished processing, I lift it straight up then away from the stove. I've had no problems so far.
Pressure canning is the only method recommended safe by the U.S. Department of Agriculture for low-acid foods. Doubles as a boiling water canner for preserving fruits, jams, jellies, pickles and salsa in pint and half pint jars. Also 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. Deluxe pressure dial gauge registers the complete range of processing pressures. This precise measurement is especially important at higher altitudes. 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. Liquid capacity: 16 quarts (15.1 liters).