Yield: Yield depends on how much ingredients are used
Prep Time: 120 minutes
Processing Time: 35 Minutes
Bottled lemon juice or citric acid
*Note* Any quantity of tomatoes can be used. An average of 3 to 3 1/4 lb (1.35 to 1.5 kg) of tomatoes are needed to make 1 L of juice.
- Place required number of clean 500 ml, 1 L or 1.5 L mason jars on a rack in a boiling water canner; cover jars with water and heat to a simmer (180°F/82°C). Set screw bands aside. Heat SNAP LID® sealing discs in hot water, not boiling (180°F/82°C). Keep jars and sealing discs hot until ready to use.
- Wash tomatoes, remove stems and trim off bruised or discoloured portions.
- To prevent juice from separating, quarter 1 lb (500 g) tomatoes (about 2 cup [500 ml]) and place in a large stainless steel saucepan over high heat. Stir and crush mixture until it boils rapidly. Then continue to slowly add and crush freshly cut tomato quarters to the boiling mixture. Be sure to maintain a constant, vigorous boil while adding remaining tomatoes. When all pieces have been added and crushed, boil gently for 5 minutes before juicing.
- If juice separation is not a concern, simply slice or quarter tomatoes into a large stainless steel saucepan. Crush, heat and boil gently for 5 minutes before juicing.
- To remove skins and seeds, press through a fine sieve or food mill. Discard seeds and skins. Return juice to saucepan; heat to boiling.
- Add quantity of lemon juice or citric acid specified below to each hot mason jar before filling with juice. If using, add salt to jar prior to filling:
Jar size Lemon juice or Citric acid Salt, optional
500 ml 1 tbsp (15 ml) or 1/4 tsp (1 ml) 1/2 tsp (2 ml)
1 L 2 tbsp (30 ml) or 1/2 tsp (2 ml) 1 tsp (5 ml)
1.5 L 3 tbsp (45 ml) or 3/4tsp (4 ml) 1 1/4 tsp (7 ml)
- Ladle juice into a hot jar to within 1/2 inch (1 cm) of top rim (headspace). Using nonmetallic utensil, remove air bubbles and adjust headspace, if required, by adding more juice. Wipe jar rim removing any food residue. Centre hot sealing disc lid on clean jar rim. Screw band down until resistance is met, then increase to fingertip tight. Return filled jar to rack in canner. Repeat for remaining tomato juice.
- When canner is filled, ensure that all jars are covered by at least one inch (2.5 cm) of water. Cover canner and bring water to full rolling boil before starting to count processing time. At altitudes up to 1000 ft (305 m), process –boil filled jars-
Jar size Processing time*
500 ml 35 minutes
1 L 40 minutes
1.5 L 50 minutes
- When processing time is complete, remove canner lid, wait 5 minutes, then remove jars without tilting and place them upright on a protected work surface. Cool upright, undisturbed 24 hours; DO NOT RETIGHTEN screw bands.
- After cooling check jar seals. Sealed discs curve downward and do not move when pressed. Remove screw bands; wipe and dry bands and jars. Store screw bands separately or replace loosely on jars, as desired. Label and store jars in a cool, dark place. For best quality, use home canned foods within one year.