How to Make Raspberry Jam in Canada (Seeded or Seedless)

Raspberry jam is the easiest Canadian jam to set. Raspberries bring their own pectin and their own acid; you just provide sugar and a brief cook. The result is the most flavourful jam on the shelf.

This guide covers the Bernardin water-bath method with both seeded and seedless paths, plus pectin and no-pectin options. The processing time is the standard Bernardin time; verify against your edition.

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Pick your raspberries

Garden raspberries (best for home jam)

• Boyne — Prairie classic, hardy zone 3, summer-bearing
• Killarney — Ontario standard, summer-bearing
• Nova — Atlantic Canada and Ontario, summer-bearing
• Heritage / Polana / Joan J — fall-bearing/everbearing, smaller crops over longer period
• Tulameen — BC commercial variety, large, premium

Wild raspberries

If you have access to wild Rubus idaeus in Canadian forests (most provinces have wild raspberries in cleared areas, roadsides, abandoned fields), they make the most intense jam. Smaller berries, more concentrated flavour.

Farmer’s market raspberries

Most reliable source if you don’t grow your own. Pick a Saturday in mid-July (peak summer-bearing season) and buy 2-3 baskets at once.

Frozen raspberries

Work perfectly for jam — frozen often makes better jam than fresh because freezing breaks cell walls. Use directly from frozen; don’t thaw before measuring.

You need about 1 kg of raspberries (5 cups crushed) for a 6-jar batch.

What you need

For 6 × 250 mL jars:

• 1 kg fresh or frozen raspberries (5 cups crushed)
• 5 cups granulated sugar (with pectin path) OR 4 cups (no-pectin)
• 2 tbsp bottled lemon juice — guarantees safe acidity
• 1 box Bernardin Original powdered pectin OR 1 pouch Certo liquid pectin (Path A)
• Optional: ½ tsp butter 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, large heavy pot, potato masher
• Food mill or fine-mesh sieve (only if making seedless jam)
• Frozen plates for cold-plate test (no-pectin path)

Method (Path A: With commercial pectin, seeded)

Step 1: Prep raspberries

1. Sort raspberries — discard any mouldy, mushy, or unripe berries.
2. Wash gently by dunking in cool water (don’t run tap water over — bruises berries).
3. Drain in colander. Pat very dry with tea towels.
4. Crush in a heavy pot with a potato masher. Some berries should stay partially intact; others fully crushed.
5. Measure — should be 5 cups crushed.

Step 2: Seedless option

If making seedless jam, pass crushed berries through a food mill with the fine disc, OR press through a fine-mesh sieve with a spatula. Discard the seed-and-pulp residue (or save for a sauce).

This step costs about 15-20% of yield but produces dramatically smoother jam.

Step 3: Combine

1. Stir crushed (or strained) raspberries + 2 tbsp bottled lemon juice + 1 box Bernardin Original pectin + optional ½ tsp butter in the pot.
2. Stir constantly over high heat.

Step 4: Boil and add sugar

1. Bring to a full rolling boil — one that can’t be stirred down.
2. Add all 5 cups sugar at once, stirring vigorously.
3. Return to a full rolling boil and boil hard 1 minute exactly.
4. Remove from heat, skim foam.

For Certo liquid pectin: combine raspberries + sugar + lemon juice. Bring to rolling boil. Add the entire pouch. Return to rolling boil; boil 1 minute. Remove.

Step 5: Jar and process

1. Have your water-bath canner simmering.
2. Have hot jars ready, fresh SNAP lids on the counter.
3. Ladle hot jam into hot jars through a funnel. Leave 6 mm (¼ inch) headspace.
4. Run the headspace tool down each jar to release bubbles.
5. Wipe rims. Apply lids fingertip-tight.
6. Process 10 minutes at sea level (verify with Bernardin edition).
7. Adjust for altitude per our altitude article.
8. Cool 12-24 hours undisturbed. Check seals.

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

Method (Path B: Without commercial pectin)

1. Combine 5 cups crushed raspberries + 4 cups sugar + 2 tbsp lemon juice.
2. Bring to a boil, stirring constantly.
3. Boil 20-25 minutes, stirring frequently as it thickens.
4. Cold-plate test at 20 minutes:
   • Drop ½ tsp on a frozen plate
   • Wait 1 minute; push edge — wrinkles + holds shape = done
5. Jar and process as above.

Yield slightly lower; softer set but still firms up well.

Storage

• Cool, dark, dry place at room temperature
• Best quality 18-24 months
• After opening: refrigerate, use within 3-4 weeks
• Colour fades over years; cosmetic only

Variations

Raspberry-vanilla jam

Split 1 vanilla bean, scrape seeds into pot, drop pod in. Remove pod before jarring. Pricey but luxurious.

Raspberry-rose jam

Add 1 tbsp dried culinary rose petals (in cheesecloth) to the cook. Remove before jarring. Subtle floral note; British-Canadian afternoon tea style.

Raspberry-chambord jam (refrigerator only)

Add 2 tbsp Chambord (raspberry liqueur) at the end. Do NOT water-bath can boozy versions. Fridge or gift jars only.

Raspberry-peach jam

3 cups raspberries + 2 cups peeled chopped peaches. Late August perfection.

Raspberry-rhubarb jam

2 cups raspberries + 3 cups chopped rhubarb. Tart and bright; the rhubarb cuts the raspberry sweetness.

Raspberry-balsamic jam

Add 1 tbsp aged balsamic vinegar at the end. Sophisticated; pairs with cheese, beef.

Raspberry jelly (no pulp)

Strain the pulp completely; use the juice with sugar and pectin. Crystal-clear, beautiful, more delicate flavour than full jam.

Freezer raspberry jam

See freezer jam guide — raspberries are excellent in freezer jam.

How to use raspberry jam

• On toast or scones — daily breakfast staple
• PB&J — peanut butter and raspberry jam is the gourmet version
• Filling for thumbprint cookies, linzer cookies, jam tarts
• Stirred into oatmeal or yogurt
• As a glaze for chicken or pork
• Topping for ice cream
• Cheese plate — sharp cheddar, aged brie, blue cheese
• In a Victorian sponge cake
• Crepe filling with whipped cream
• As a cocktail mixer — 1 tbsp in champagne (raspberry royale)
• Gift jars — the prettiest red on the shelf

Common problems

• Tiny seeds annoy. Use the seedless food-mill method next batch.
• Jam too soft. Either undercooked (no-pectin path) or skipped pectin. Reboil with more pectin.
• Jam too firm/gummy. Over-cooked. Warm gently with a teaspoon of water to loosen.
• Foam stayed in. Skim better or use ½ tsp butter trick.
• Jam darkened. Oxidation in storage. Store dark.
• Colour faded. Light exposure or years of storage. Store dark; use within 2 years.
• Berries floated to top. Stir between jars, or let jam cool 5 minutes before ladling.
• Jar didn’t seal. The 24-hour rule.
• Tastes flat. Skipped lemon juice. Add 1 tbsp per cup and reboil.

Why home raspberry jam is worth it

• Best raspberry flavour you’ll taste — commercial raspberry jam is over-sweetened and over-processed
• Cheap if you grow them — a single 2 m² raspberry patch produces 5-10 kg of fruit per season
• Easy to set — raspberries are the most cooperative jam fruit
• Gift-friendly — beautiful red jars
• Better in winter — fresh imported raspberries in February cost $5 for a tiny clamshell; your summer jam is the real thing
• Heritage Canadian — backyard raspberry canning is a multigenerational tradition

Next steps

• How to make strawberry jam — gateway recipe
• How to make blueberry jam — August companion
• How to make blackberry jam — bramble-berry sibling, late summer
• How to make peach jam — August stone fruit
• How to freeze berries in Canada — store for off-season jam
• Why didn’t my jam set — troubleshooting
• Best food mill in Canada — for seedless jam
• Water-bath canning pillar — broader method