Rising food costs have persuaded more than the usual number of Mainers to plant gardens. You may be thinking about preserving your harvest for the first time—or dusting off old canning equipment. If you plan to can garden surplus this year, be sure to get up-to-date information. Updated recommendations are as close as your local UMaine Extension office; call 207.622.7546 to reach the UMaine Extension Kennebec County office.
A national survey conducted by the USDA-NIFA National Center for Home Food Preservation in 2000 found that many people use canning practices that put them at high risk for foodborne illness. Over the years, changes in scientific expertise, as well as canning equipment, have occurred, so there is new information on the right type of methods, canners, jars, and seals. For instance, there are two types of canners for home canning: the boiling water-bath canner, and the pressure canner. Using the pressure canner for low-acid foods such as vegetables, meats, poultry, and fish is a must to prevent botulism. The water-bath canner is used for high-acid foods such as fruits, jams, and jellies.