Water bath canners have fitted lids and removable wire racks. While they come in many sizes, the canner must be deep enough to allow a minimum of 1-2 inches of briskly boiling water that covers the top of jars during processing.
To learn more about safe water bath canning practices, watch our How to Use a Water Bath Canner video!
The Master Food Preserver program provides volunteers with extensive knowledge of safe home food preservation practices, research-tested recipes and up-to-date USDA food preservation regulations.
For accuracy before use, it is recommended that dial gauges get tested each year. Gauges that read high cause under-processing and may result in unsafe food.
Try this research-tested recipe for blackberry jam courtesy of the National Center for Home Food Preservation.