🍓🍯 Loganberry Jam Recipe (UK): How to Make This Deeply Fruity Preserve at Home

🍓 Introduction: Why Make Loganberry Jam?

Loganberries are a classic British soft fruit, combining the richness of blackberries with the sharpness of raspberries. This makes them perfect for jam — deeply fruity, beautifully coloured, and full of flavour. Homemade loganberry jam is ideal for toast, scones, sponge cakes, and desserts, and it’s a great way to preserve a summer harvest.

This UK-style guide walks you through making loganberry jam at home, with tips for perfect setting and flavour.

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• Large Preserving Pan

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• Jam Jars with Lids

Sterilised jars are essential for safe storage.
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• Sugar Thermometer (Optional)

Helps achieve the perfect setting point.
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🧾 Ingredients (Makes approx. 5–6 jars)

• 1 kg loganberries
• 1 kg jam sugar (with added pectin)
• Juice of 1 lemon
• 100 ml water

Loganberries are naturally high in pectin, but jam sugar gives a more reliable set.

👩‍🍳 How to Make Loganberry Jam (Step-by-Step)

1️⃣ Prepare the Loganberries

• Rinse gently and remove any stems or leaves
• Place fruit into a large preserving pan
• Add the water

2️⃣ Soften the Fruit

• Heat gently, stirring occasionally
• Simmer for 10–15 minutes until fruit is soft and juicy

Do not rush this stage — soft fruit gives better flavour.

3️⃣ Add Sugar and Lemon Juice

• Add jam sugar and lemon juice
• Stir gently over low heat until sugar fully dissolves

Check there are no sugar crystals before boiling.

4️⃣ Boil to Setting Point

• Increase heat and bring to a rolling boil
• Boil hard for 8–10 minutes

Setting test options:

• Temperature: 105°C
• Wrinkle test on a chilled plate

5️⃣ Skim and Jar

• Remove from heat
• Skim off any foam
• Pour into hot, sterilised jars
• Seal immediately

Allow jars to cool fully before labelling.

🫙 Sterilising Jam Jars (Quick Method)

• Wash jars in hot soapy water
• Rinse well
• Place in oven at 120°C for 10–15 minutes
• Keep hot until ready to fill

🍞 Serving Ideas

Loganberry jam is delicious with:

• Toast and butter
• Scones and clotted cream
• Victoria sponge
• Yogurt or porridge
• Cheesecakes and desserts

Its bold flavour stands out beautifully in baking.

❄️ Storage & Shelf Life

• Store sealed jars in a cool, dark place
• Keeps for up to 1 year unopened
• Once opened, refrigerate and use within 4–6 weeks

⚠️ Common Jam-Making Mistakes

❌ Not dissolving sugar fully
❌ Overcooking (leads to stiff jam)
❌ Underboiling (jam won’t set)
❌ Using unsterilised jars
❌ Stirring too much during boiling

❓ Frequently Asked Questions

Do loganberries need extra pectin?
Usually no, but jam sugar improves reliability.

Can I reduce the sugar?
Yes, but setting may be softer and shelf life shorter.

Can I freeze loganberries for jam later?
Yes — frozen fruit works perfectly.

Why is my jam runny?
It may not have reached setting point — it can be reboiled.

🧠 Key Takeaway

Loganberry jam is a rich, deeply flavoured preserve that’s easy to make at home and perfect for showcasing this traditional British fruit. With proper boiling, careful testing, and clean jars, you’ll enjoy beautifully set jam that lasts all year and tastes far better than shop-bought.