How to Make Peach Jam in Canada (Bernardin Method)

Peach jam is the August canning prize. Canadian peaches — Niagara and Okanagan — are at peak for about three weeks each, and a batch of peach jam captures that window for the rest of the year. The recipe is straightforward; the variable that matters most is the peach itself.

Bernardin publishes two tested peach recipes, and the one on their website is not quite the jam most people picture — it is Classic Peach Preserves, sliced rather than crushed, and macerated in sugar before it ever sees heat. Their Complete Book of Home Preserving carries a plain Peach Jam as well, from finely chopped peaches with no maceration step. The preserves are first below, with their published processing time; the book’s jam follows. The crushed-fruit jam most Canadian households actually make comes after both.

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What Bernardin actually publishes

Bernardin’s tested peach recipe on their website is Classic Peach Preserves, and the recipe itself is credited to the Ontario Tender Fruit Association — a Canadian grower body, inside the Canadian canning authority. It differs from the crushed-fruit jam most people picture, in ways worth knowing before you start:

• Sliced, not crushed — 4 cups (1000 mL) of peeled peaches cut about 1/8 inch thick
• Macerated before any heat — the slices are layered with the sugar and left to stand 4 to 6 hours. That is what holds whole slices suspended in the set instead of breaking them down, and it is why the result is called preserves rather than jam
• Liquid pectin, added after the boil — one 85 mL pouch, not powdered pectin stirred in at the start
• 6 cups (1500 mL) sugar and 4 tbsp (60 mL) bottled lemon juice, for about 7 to 8 jars of 250 mL
• Processed 10 minutes at altitudes up to 305 m

There is no plain “Peach Jam” on bernardin.ca — but their Complete Book of Home Preserving has one, at page 40. On the website, every Bernardin peach recipe with jam in the name is either a blend — Peach and Blackberry, Peach-Blueberry — or a freezer jam, and the plain cooked-and-canned peach is the preserves above. The book is the other place to look, and it publishes a plain Peach Jam: 4 cups (1 L) finely chopped pitted peeled peaches, 4 tbsp (60 mL) bottled lemon juice, 7½ cups (1.875 L) granulated sugar and 3 oz (88.5 mL) liquid pectin, for about eight 250 mL jars.

It is a variation, and it takes its whole method from the Apricot Jam on page 38: bring the fruit, lemon juice and sugar to a full rolling boil that cannot be stirred down, stir in the pectin, boil hard 1 minute, then ladle into hot jars at 0.5 cm (¼ inch) headspace and process 10 minutes — the same two figures as the preserves above. Two things come with it. The book states that 10 minutes without naming an altitude ceiling, so work from your own altitude band. And in the book’s own words: do not use white-fleshed peaches for this jam.

Corrected 17 September 2026: this page used to say there is no plain Peach Jam in Bernardin’s catalogue, full stop. That is true of bernardin.ca and not of their Complete Book of Home Preserving (ISBN 978-0-7788-0137-5), which publishes one at page 40. No figure on this page changed — both recipes give 250 mL jars, 10 minutes in the canner and 0.5 cm (¼ inch) headspace — so a jar already made to either one is unaffected. What was wrong was telling you to stop looking.

Bernardin’s method

1. Macerate. Layer the peach slices and the sugar alternately in a large, deep stainless steel saucepan. Cover and leave at room temperature 4 to 6 hours. No heat yet.
2. Heat the jars. Eight clean 250 mL jars on a rack in the canner, covered with water, brought to a simmer at 82 °C (180 °F). Hold them hot until you fill.
3. Do not preheat the lids. Bernardin advises against it — the sealing compound performs better at room temperature. Wash them in hot soapy water, dry, and set aside. Preheating risks a weaker vacuum in a water bath, and buckled lids under pressure.
4. Boil. Add the 4 tbsp (60 mL) bottled lemon juice and the optional 1/2 tsp (2 mL) butter to the macerated fruit. Over high heat, bring to a boil, stirring constantly.
5. Add the pectin. Squeeze in the whole 85 mL pouch immediately. Return to a full rolling boil that cannot be stirred down and boil hard 1 minute, stirring constantly. Off the heat, skim the foam.
6. Jar leaving 0.5 cm (¼ inch) headspace, then process 10 minutes at altitudes up to 305 m — adjust upward for your altitude band.
7. Cool. Heat off, canner lid off, wait 5 minutes, then lift the jars out without tilting. Undisturbed 24 hours; do not retighten the bands.

Everything below is technique for the crushed-fruit jam most Canadian households make. The quantities and the processing time come from one of the two tested recipes above, or from your pectin box’s own peach jam recipe — this page does not publish a third set.

Corrected 17 September 2026: this page used to publish a third, from-scratch crushed-fruit recipe with its own quantities — 2.5 kg of peaches, 6 cups of sugar, a powdered-pectin gram range, and a no-pectin option boiled 25 to 40 minutes. No source we hold publishes any of it, and we cannot give a tested processing time for a recipe nobody tested, so those figures are removed. The two tested recipes above are unchanged.

Pick your peaches

Three things matter:

1. Freestone, not clingstone

Freestone peaches — the flesh separates cleanly from the pit. Cresthaven, Redhaven, Loring, Veteran, Glohaven, Reliance. Use these for jam.

Clingstone peaches — flesh grips the pit. Painful to prep at scale; usually canned commercially in syrup. If a farmer’s-market peach won’t twist apart at the seam, it’s a clingstone — eat it fresh, use freestones for jam.

2. Ripeness

You want peaches that are ripe enough to smell fragrant and yield slightly to gentle pressure, but firm enough to hold their shape during chopping. Soft peaches that bruise from the weight of your fingers are over-ripe — they’ll mush, and the jam won’t have texture.

If your peaches are too firm, sit them on the counter for 1-2 days. If they’re too soft, use them for ice cream or eat them out of hand and buy fresh ones for jam.

3. Variety (regional Canadian)

• Niagara peaches: Redhaven (late July), Loring (early August), Glohaven (mid-August), Vivid (late August)
• Okanagan peaches: Cresthaven (mid-August), Veteran (late August), Reliance (early September)
• Avoid: imported supermarket peaches — picked underripe in California or Chile, never developed full flavour

A typical Canadian farm stand sells peaches by the half-bushel basket (~5 kg) in season.

What you need

• Ripe Canadian freestone peaches — the quantity your pectin box’s peach jam recipe gives
• Granulated sugar, bottled lemon juice and pectin — the quantities from that same box recipe; don’t cut the lemon juice, the set depends on it (see the FAQ)
• Optional: ½ tsp butter or margarine to reduce foam
• Bernardin 250 mL regular-mouth jars, fresh SNAP lids, bands
• Standard canning kit — jar lifter, headspace tool, funnel, water-bath canner, ladle (which canner to buy)
• Large bowl of ice water for the blanching step

Method

Step 1: Blanch and peel

1. Bring a large pot of water to a rolling boil.
2. Have a large bowl of ice water ready beside the stove.
3. Score a shallow X in the bottom of each peach with a paring knife.
4. Drop peaches in boiling water for 30-60 seconds — until the skin around the X loosens.
5. Transfer immediately to ice water for 30 seconds.
6. The skins slip off easily — start at the X and pull.

Don’t try to peel without blanching unless your peaches are extremely ripe.

Step 2: Chop and crush

1. Halve and pit the peaches.
2. Chop into ½-1 cm pieces — small enough to spread on toast, big enough to still see fruit.
3. Crush lightly with a potato masher for chunky-style, or pulse 3-4 times in a food processor for smoother. Don’t puree — that’s peach butter territory.

Step 3: Set the jam

Use the peach jam recipe on your pectin box. A pectin set is calibrated to the fruit, the sugar and the pectin together, so the box gives all three quantities and the processing time — and a box recipe is a tested recipe. Bernardin Original powdered pectin and Certo liquid pectin each carry their own; follow the one in front of you exactly, including the order it adds things in.

We do not publish a no-pectin version of our own. The Complete Book of Home Preserving does publish one — a no-added-pectin Peach or Nectarine Jam at p.25, in a section that gets its set from tart apples cooked down with the fruit rather than from a box. It is a different recipe from either of the two above, and we are not restating its quantities here; read it at p.25.

Corrected 17 September 2026: this page used to say that no source we hold publishes a sugar quantity or a cook time for a no-pectin peach jam. The Complete Book of Home Preserving publishes one at p.25. No figure on this page changed — the two tested recipes above are unaffected. What was wrong was telling you the answer did not exist.

Step 4: Jar and process

1. Have your water-bath canner simmering with enough water to cover jars by 2.5 cm.
2. Have hot jars ready, fresh SNAP lids on the counter.
3. Ladle hot jam into hot jars. Leave 0.5 cm (¼ inch) headspace — Bernardin’s standard for jam.
4. Run the headspace tool down inside each jar to release air bubbles.
5. Wipe rims with a damp clean cloth.
6. Apply fresh SNAP lids fingertip-tight.
7. Process in the boiling water bath for the time your pectin box gives for peach jam, which applies at altitudes up to 305 m.
8. Adjust for altitude per our altitude-adjustments guide.
9. Cool 24 hours undisturbed on a towel. Check seals.

If a jar doesn’t seal: the 24-hour rule applies.

Storage

• Cool, dark, dry place at room temperature
• Best quality 12 months — Bernardin’s guidance is to use home-canned food within one year. That is a quality window, not an expiry: the jar is as safe as the process made it. Colour, flavour and texture fade.
• After opening: refrigerate, use within one week (HealthLink BC)
• Check before opening — peach jam should stay golden-amber; significant darkening can mean oxidation (still safe, just dull)

Corrected 31 Aug 2026: this page previously gave an after-opening window of 3-4 weeks. HealthLink BC File #22 publishes one week for any opened home-canned container — “Once the container has been opened, refrigerate leftovers, and use within one week.” Our longer figure was never attributed to anyone. The shelf life of the sealed jar is unchanged.

Variations

A flavouring or a fruit swap changes what a tested recipe was tested at, and no source we hold says a given change is fine — so this page no longer suggests any. The two variations below are here because each one defers to a tested product or a tested method rather than altering one.

Lower-sugar peach jam

Use Bernardin’s tested no-sugar-needed or low-sugar pectin (specific products — not regular pectin with less sugar). Follow that pectin’s box instructions exactly. Regular pectin with less sugar doesn’t set.

Freezer peach jam

Skip the water-bath; use a freezer-jam pectin (sold by Bernardin and Certo). Different texture, fresher flavour, stored in freezer. See our freezer jam guide for the method.

Common problems

• Jam didn’t set. Under-cooked, or the pectin quantities were off. Three salvage paths in why didn’t my jam set.
• Foam stayed in the jam. Skim better next time, or use the ½ tsp butter trick.
• Jam darkened over months. Mild oxidation — safe, just less attractive. Store in dark.
• Sugar crystallized. Warm jar gently in hot water to redissolve.
• Peach pieces floated to the top. “Fruit floating” — let the jam cool 5 minutes before jarring (the pectin starts setting and holds fruit suspended), or stir gently mid-way through ladling.
• Jar didn’t seal. The 24-hour rule.
• Brown spots in the jam. Bruised peaches went in. Trim those next batch.

Yield expectations

Yield comes from the recipe you follow. Bernardin’s Classic Peach Preserves gives about 7 to 8 jars of 250 mL; the Complete Book’s Peach Jam gives about eight. A pectin box recipe states its own.

A typical Canadian household goes through about 6-12 × 250 mL jars of peach jam per year. Scale your batch to match — Bernardin’s guidance is to use home-canned food within one year, and peach jam is one that shows its age (texture softens, colour dulls).

Why peach jam is worth the work

• Genuinely Canadian — Niagara and Okanagan are world-class peach regions; jam from local peaches has terroir
• Strong gift jar — peach jam in 125 mL or 250 mL jars is a recognizable luxury gift
• Pairs broadly — toast, scones, yogurt, cheese plate, glazes for poultry
• Better than commercial — store-bought peach jam is typically too sweet and over-processed; homemade is the real thing

Next steps

• How to make strawberry jam in Canada — the gateway jam recipe
• How to make apricot jam in Canada — stone-fruit sibling, same August timing
• How to make rhubarb jam — June pairing
• Why didn’t my jam set — troubleshooting
• Canning altitude adjustments — required reading
• Bernardin vs Mason vs Kerr jars — which jars to use
• Water-bath canning pillar — broader method
• Plum jam and canned peaches in syrup.