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Canning Fruit

A method for canning various fruits with sugar, using hot water‑filled cans and pressing fruit to eliminate air.

From an old cookbook · modernised transcription
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Why it works: Plum and pear match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 245 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Canning Fruit

Ingredients

Directions

Prepare

  1. Prepare a kettle lined with granite or porcelain for cooking the fruit.

  2. Fill the cans with hot water and pour the hot water out before adding fruit.

Fill and seal

  1. Cook the fruit with sugar until hot.

  2. Dip the hot fruit into the cans.

  3. Fill each can about one-third full of juice before adding fruit.

  4. Use a tablespoon handle to press down the fruit and eliminate air pockets.

  5. Ensure juice overflows slightly when sealing the can.

  6. After cooling, tighten the covers.

Store and check

  1. Store the cans upside down in a dark, dry place.

  2. Check for any juice leakage.

  3. Monitor for fermentation over the next few weeks.

  4. If fermentation is stable, the fruit can last for years.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Plum + peartop 1% of all pairs
    Smell alikestrong
    Cooked together245 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  2. Apple + peartop 1% of all pairs
    Smell alikestrong
    Cooked together649 recipes

    Shared aroma: isoamyl acetate (banana, fruity).

  3. Peach + plumtop 1% of all pairs
    Smell alikestrong
    Cooked together163 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  4. Quince + peartop 1% of all pairs
    Smell alikestrong
    Cooked together133 recipes

    Shared aroma: ethyl isobutyrate (fruity, ethereal).

  5. Peach + peartop 1% of all pairs
    Smell alikestrong
    Cooked together114 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Sugar
Sweetens the fruit and helps preserve its flavour and texture during cooking and storage.

The step that matters

Leave juice overflow when sealing. Filling the can with hot fruit and juice so it overflows slightly pushes out air as it cools. Less trapped air means less oxidation and lower risk of spoilage or fermentation in storage.

Swap the pineapple

How well each one fits the dish's main ingredients (peach, crab, apple, plum, quince, pear, sugar):

  1. Apricotfits better
  2. Vanillafits about as well
  3. Pineapplethe original
  4. Figfits about as well

Fit is the average pairing score against peach, crab, apple, plum, quince, pear, sugar. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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