Here’s an infallible method that can keep tomatoes fresh for up to 2 years without vinegar, focusing on sterile, airtight preservation:
🛑 Important Safety Note:
This method must be followed precisely to avoid the risk of botulism or spoilage. Always use clean, sterilized equipment and store jars in a cool, dark place.
âś… Ingredients & Tools
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Fresh ripe tomatoes (Roma/plum varieties are best)
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Salt (optional – for flavor and preservation)
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Large pot
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Glass canning jars with new lids (Mason jars or Weck jars)
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Jar lifter or tongs
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Clean kitchen towels
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Blender or food mill (optional, for purée)
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Large canner or stockpot for water bath processing
🍅 Step-by-Step Method (No Vinegar)
1. Wash & Prepare Tomatoes
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Wash tomatoes thoroughly.
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Cut an X on the bottom of each tomato.
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Blanch in boiling water for 30 seconds, then shock in ice water.
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Peel off the skins.
2. Choose a Storage Form
You can preserve tomatoes as:
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Whole peeled tomatoes
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Tomato purée
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Tomato juice
All methods below can last up to 2 years if properly canned.
3. Pack the Tomatoes
A. Whole Tomatoes in Own Juice
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Fill sterilized jars with peeled tomatoes.
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Press them down to release juices and remove air bubbles.
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Add a pinch of salt (optional).
B. Tomato Purée
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Blend or mill peeled tomatoes.
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Heat the purée to a gentle simmer for 10–15 minutes (do not boil off too much liquid).
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Pour hot into jars, leaving 1/2 inch headspace.
4. Seal the Jars
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Wipe the jar rims with a clean towel.
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Place sterilized lids on jars and screw on rings until fingertip tight.
5. Water Bath Processing (Essential)
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Place jars in a water bath canner.
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Ensure jars are covered with at least 1 inch of water.
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Bring to a boil and process for:
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85 minutes for whole tomatoes
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35–45 minutes for purée, depending on jar size
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Adjust for altitude if needed.
6. Cool & Store
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Remove jars carefully and place on a towel.
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Let them cool for 12–24 hours.
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Check seals: the lids should be concave and not move when pressed.
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Label jars with the date.
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Store in a cool, dark, dry place.
âś… Shelf Life
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Up to 2 years when stored correctly.
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Flavor may degrade slightly after 18 months, but safety remains intact if seal holds.
👩‍🌾 Pro Tips:
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Avoid adding oil, herbs, or garlic unless using pressure canning (these increase risk of botulism).
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You can freeze purée instead if you don’t want to water bath can.