Presto pressure canners are considered to be one of the top brands when it comes to sterilizers. Designed for easy, safe home pressure canning. This 23.5 quart canner has an air vent/cover lock which allows pressure to build only when the cover is closed properly. The lock also prevents the canner from being opened until the pressure has dropped to a safe level. Another benefit to this particular model is the induction capability, making it usable on any stove top.