Here’s how you can do it:
1. Freezing (Best for Flavor Retention)
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Steps:
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Wash and core the tomatoes.
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Optional: Blanch for 1–2 minutes in boiling water and immediately cool in ice water (removes skins easily).
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Chop or leave whole, then pack into freezer-safe bags or containers.
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Remove as much air as possible.
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Label with date — lasts up to 2 years in a deep freezer.
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Pros: Retains fresh flavor, no vinegar needed.
Cons: Changes texture when thawed; best for sauces, soups, and stews.
2. Pressure Canning (Vinegar-Free Tomato Sauce or Paste)
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Why pressure canning: Tomatoes are acidic but sometimes borderline low-acid; vinegar isn’t strictly required if processed safely under pressure.
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Steps:
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Prepare tomatoes: peel and crush or make into sauce.
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Hot pack the tomatoes into sterilized jars.
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Process in a pressure canner at 10–15 psi (depending on altitude) for the recommended time (usually 20–25 minutes for pints).
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Let jars cool and store in a cool, dark place.
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Pros: Shelf-stable for 1–2 years, preserves natural flavor.
Cons: Must follow exact pressure canning instructions for safety; vinegar is optional but sometimes added to increase acidity for flavor.
3. Dehydrating (Sun-Dried or Oven-Dried Tomatoes)
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Steps:
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Wash and slice tomatoes evenly.
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Dry in a food dehydrator or low oven (130–140°F / 55–60°C) for 6–12 hours until leathery or brittle.
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Store in airtight jars, vacuum-sealed bags, or frozen for long-term storage.
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Pros: No vinegar, lightweight, long-lasting (1–2 years if stored properly).
Cons: Changes texture; better for cooking than fresh eating.
Tips for 2-Year Storage
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Always use clean, sterilized containers.
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Keep in a cool, dark, dry place to avoid spoilage.
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Label with date for rotation.
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For freezing, vacuum-sealing extends storage time.
If you want, I can give you a step-by-step “2-year tomato preservation plan” with no vinegar that combines freezing + dehydrating + optional canning, so you’ll have fresh tomato products year-round.
Do you want me to make that?