Canning & Preserves

Italian Canned Whole Tomatoes & Sauce

Step-by-step home preservation method for canning garden fresh plum tomatoes and sauce.

March 7, 2026 By Chef Clara 5.0 (213 votes)
Italian Canned Whole Tomatoes & Sauce
The Quick Takeaway

In a nutshell: This authentic italian italian canned whole tomatoes & sauce comes together in just 85 mins using simple whole ingredients. Perfect for home cooks seeking a dependable, restaurant-quality finish with minimal effort.

Prep Time 40 mins
Cook Time 45 mins
Total Time 85 mins
Cuisine Italian
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Preserve your summer tomato harvest! Learn how to safely water-bath can vine-ripened tomatoes for delicious winter pasta sauces.

Key Equipment

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Chef's Pro-Tips

  • Bottled Lemon Juice Only: Use bottled lemon juice, not fresh, at 2 tablespoons per quart jar. Its acidity is standardized, which is what makes these jars shelf-safe — fresh lemons vary too much for canning.
  • Check Seals at 24 Hours: After cooling a full day, press each lid: it should be concave and not flex. Any jar that didn't seal goes straight to the fridge, not the pantry.

Ingredients
16 servings

  • 12 lbs ripe San Marzano or plum tomatoes
  • 8 tbsp bottled lemon juice, 2 tbsp per quart jar
  • 4 tsp canning salt, 1 tsp per quart jar
  • 8 sprigs fresh basil, optional
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Step-by-Step Instructions

1

Blanch & Peel Tomatoes

Cut a small 'X' on bottom of tomatoes. Blanch in boiling water for 60 seconds, then plunge into ice water. Slip skins off effortlessly.

2

Pack Jars

Add 2 tbsp bottled lemon juice and 1 tsp canning salt to each sterilized quart jar. Tightly pack peeled tomatoes into jars, pressing gently to release juice.

3

Water Bath Canning

Wipe rims clean, apply lids and rings. Process in boiling water bath canner for 45 minutes. Remove and cool 24 hours to verify vacuum seal.

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Frequently Asked Questions

Bottled lemon juice ensures the tomatoes are acidic enough for safe water-bath canning. Use the full 2 tablespoons per quart — don't skip or reduce it.

After cooling for 24 hours, press the center of each lid — it should not flex or pop. Any jar that didn't seal needs to go in the refrigerator and be used first.

Yes — any ripe plum tomatoes work. San Marzanos are preferred for their meaty texture and low seed count, but the canning process is the same.

Stored in a cool, dark place, properly sealed jars keep for up to a year. Once opened, refrigerate and use within a few days.