Skip to main content
Dessert

Observations on Canning

Instructions for canning fruit, covering selection, can preparation, sealing, and syrup making.

From an old cookbook · modernised transcription
Jump to recipe ↓

Observations on Canning

Ingredients

Directions

Prepare the jars

  1. Gather fruit in dry weather, selecting only the largest and finest quality and discarding bruised fruit.

  2. Examine cans or jars and elastics before starting; ensure screws are in order, cans are free of cracks or nick, and elastics are firm and fitting.

  3. Place each empty can in a pan of hot water on the range or stove.

Fill and seal

  1. Have the fruit boiling hot when sealing.

  2. Lay elastic and top close to your hand, fill the can to overflowing, remembering that fruit will shrink as it cools and that a vacuum invites air to enter; clap on the top without losing a second, screw as tightly as you can.

  3. As the contents and the can cool, screw again and again to fit the contraction of metal and glass.

Store and make syrups

  1. If using glass cans, keep them in a cool, dark place, and dry as well as cool; light will cause fermentation and color change. Always use a porcelain kettle, as acids of fruit acting on iron spoil the color.

  2. In making syrups, for which sugar nor the mode of dissolving it is specified, the following rule is to be observed: take refined sugar, reduced to a fine powder, twenty-nine ounces; the liquor prescribed one pint. Add the sugar by degrees, digest with moderate heat in a close vessel until dissolved, frequently stirring; set aside for twenty-four hours, take off the scum, and pour off the syrup from the feces, if any.

  3. Peaches require one-quarter pound of sugar to each quart of fruit, which should be mixed in layers and slowly brought to a boil; let boil three minutes.

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. See the original page.

Explore the science

What each ingredient does

Sugar
Sweetens the fruit and, when dissolved into syrup, helps preserve it.
Fruit
Is the main food being preserved; its acids affect the color when cooked in iron.

The step that matters

Screw the lids again as the contents cool. As the contents cool, they contract and create a vacuum. Re-tightening the closures as the metal and glass contract keeps the seal airtight and stops air from entering the jar.

“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.

More canning instructions recipes

You might also like