Preparing the Jars

Use only special canning jars with metal or glass tops (check for any cracks or misshapen lids). Some jars have rubber seals that may be used once only and should be replaced each year. Wash jars and seals and rinse in scalding water: they will be sterilized during the canning process. Keep jars in a low oven or submerged in hot water until you are ready to fill them. Do not use jars with more than 1 qt/1 L capacity, as the contents may not process fully.