NO GUESSWORK TIMING: Built-in Temperature Indicator with 3 elevation zones makes process timing easy;TIME SAVER: Aluminum construction ensures quick heat-up and cool-down times;RIGHT CAPACITY: Can process up to 7 quart or 8 pint jars of high-acid foods at one time;EASY AND SAFE: Lightweight design, lower water capacity requirement and cool-touch handles;2 YEAR WARRANTY