- Preparation Time: 30–40 minutes
- Cooking Time: 45–60 minutes
- Processing (Canning) Time: 35–45 minutes
- Cooling & Setting Time: 12–24 hours
- Total Time: Approximately 14–16 hours (including cooling)
🔥 Cooking Intensity Levels:
- Low intensity: Washing, peeling, and chopping tomatoes
- Medium intensity: Simmering and seasoning mixture
- High intensity: Boiling water bath processing and sterilization
🧾 Ingredients (Makes about 4–5 half-liter jars)
- 2.5 kg ripe tomatoes (fresh, firm, and red)
- 2 tablespoons salt (non-iodized preferred)
- 2 tablespoons lemon juice or citric acid (for acidity safety)
- 2 tablespoons sugar (optional, balances acidity)
- 3 cloves garlic (optional, finely chopped)
- 1 teaspoon black pepper
- 1 teaspoon red chili flakes (optional for heat)
- Clean sterilized canning jars with lids and bands
🧰 Equipment Needed
- Large stainless-steel pot
- Water bath canner or deep stockpot with rack
- Glass canning jars with airtight lids
- Jar lifter or tongs
- Ladle and funnel
- Clean cloths and towels
- Sharp knife and cutting board
🍅 Step-by-Step Instructions
Step 1: Preparing the Tomatoes (Low Intensity – 30 minutes)
Wash tomatoes thoroughly under running water. Remove any stems or damaged parts. To peel easily, blanch them:
- Boil a large pot of water.
- Drop tomatoes into boiling water for 30–60 seconds.
- Immediately transfer them into ice-cold water.
- Peel off skins gently; they should slide off easily.
- Chop tomatoes into medium-sized pieces.
This step ensures smooth texture and removes bitterness from skins.
Step 2: Cooking the Tomato Base (Medium Intensity – 45 minutes)
Place chopped tomatoes into a large stainless-steel pot.
- Add salt, sugar, garlic, chili flakes, and black pepper.
- Stir well to mix ingredients evenly.
- Bring the mixture to a medium heat (around 70–80°C) until it begins to simmer.
- Reduce heat to low-medium (60–70°C) and cook slowly.
- Stir occasionally to prevent sticking or burning.
As tomatoes cook, they release water and form a thick sauce. Simmer until the mixture reduces by about one-third and reaches a rich consistency.
Step 3: Sterilizing Jars (Medium Intensity – 20 minutes, done parallel)
While tomatoes are cooking:
- Wash jars and lids in hot soapy water.
- Place jars in boiling water for 10–15 minutes.
- Keep them warm until ready to fill.
Sterilization is crucial to prevent bacterial growth.
Step 4: Filling the Jars (High Intensity – 15 minutes)
- Carefully ladle hot tomato mixture into sterilized jars.
- Leave about 1 cm headspace at the top.
- Add 1 teaspoon lemon juice or citric acid into each jar to maintain acidity safety.
- Remove air bubbles using a clean knife or spatula.
- Wipe jar rims clean with a cloth.
- Seal tightly with lids and bands.
Work quickly while mixture is still hot to ensure proper sealing.
Step 5: Water Bath Canning (High Intensity – 35–45 minutes)
- Fill a large canner or pot with enough water to cover jars by at least 2–3 inches.
- Bring water to a rolling boil (100°C / high intensity heat).
- Carefully place jars into the boiling water using a jar lifter.
- Process jars for 35–45 minutes depending on altitude and jar size.
- Keep water boiling consistently throughout processing.
After processing, turn off heat and allow jars to sit for 5 minutes before removing.
Step 6: Cooling and Sealing (Low Intensity – 12–24 hours)
- Place hot jars on a thick towel or wooden surface.
- Do not move or press lids.
- Listen for the “pop” sound indicating proper sealing.
- Let jars cool completely for 12–24 hours.
After cooling, check seals by pressing the center of each lid. If it does not flex, the jar is sealed properly.
🏺 Storage Instructions
- Store sealed jars in a cool, dry place away from sunlight
- Ideal storage temperature: 10–20°C
- Shelf life: up to 12 months
- Once opened, refrigerate and use within 5–7 days
⚠️ Safety Tips for Home Canning
- Always use fresh, unspoiled tomatoes
- Never reuse old or damaged lids
- Maintain correct acidity using lemon juice or citric acid
- Ensure proper sealing before storage
- Discard any jar with broken seal, mold, or unusual smell
Proper safety ensures food remains safe and free from contamination.
🍽️ Serving Suggestions
This tomato preserve can be used in many ways:
- As a base for pasta sauces
- In soups and stews
- As a pizza sauce
- Mixed into rice dishes
- As a dip or chutney base
Its rich flavor intensifies over time, making it even tastier after a few weeks of storage.
🧪 Nutritional Information (Per 100g Serving Approx.)
- Calories: 45 kcal
- Carbohydrates: 9 g
- Protein: 1.5 g
- Fat: 0.3 g
- Fiber: 2 g
- Vitamin C: 18–25 mg
- Vitamin A: Moderate levels
- Potassium: 250 mg