12 Steps to Canning Stewed Tomatoes Step 3, Wash, Rinse Jars and Rings Wash and rinse jars and rings. We use the dishwasher for this step and leave them in the machine until needed. For stewed tomatoes we prefer to use pints and narrow-mouth jars. Remember quarts need more cooking time than pints. ⇦ Back to Step 2 On to Step 4 ⇨Back to Stewed Tomatoes Page 1 |