Boil the lids to sterilize (until the water boils).
Blanch the tomatoes using the strainer pot and place in a bowl or another pot (allow to cool, these can be hot!)
Remove the stem and skin from the tomatoes.
Cut into half or quarters and place into a 5 quart pan.
Stir occasionally and mash with the potato masher.
Once the tomatoes come to a boil, remove from heat.
Canning Tomatoes
In in quart add 1/2 teaspoon citric acid or 2 Tablespoons lemon juice into each jar. If using pints, put in 1/4 teaspoon citric acid or 1 Tablespoon lemon juice into each jar.
Fill the jars with the tomatoes, leaving a 1 inch head space.optional: You can add 1/2 teaspoon salt in pints or 1 teaspoon salt in quarts.
Clean the top of the jars with a clean towel or wet cloth.
Place the seal and band on the jar and tighten slightly.
Place the jars in the canner with hot water and cover. (water should be 1" over top of jars)
Allow the water to boil and keep in water bath for 35 minutes for pints and 45 minutes for quarts.
Remove the jars and place on the counter to cool.
Place a towel around the jars to allow them to slowly cool.
Once cooled, write the date and what is in the jar on the lid with a sharpie marker.