Jam masterclass for a total beginner

I’ve been so excited about this day for ages, learning to make jam is something I’ve always wanted to master but always thought it’d be too scientific and complicated.

I’ve grown up watching my mum churn out jars and jars of perfect jams, jellies, chutneys and pickles. She’s even judged them for the legendary WI. She’s a proper expert in all things preserves.

I guess I just assumed it was beyond my kitchen know-how. But writing this blog has given me the urge to forge new frontiers beyond the safety of my tried and tested catalogue.

So day one of the school holidays and we’re up in the cooler climate of rural North Shropshire at my mum’s house – aka Granny Strawberry (Sam can’t say Shawbury).

We trooped off to Shawbury Fruit Farm first thing, armed ourselves with punnetts and set about picking as many raspberries as we could before Arlo kicked off or it started raining – Arlo got there first as it happens!

Sam had a blast picking fruit – great holiday activity for kids. He was so proud of his harvest! Arlo enjoyed eating them in his buggy.

It’s the best way to get fresh and perfect fruit for your jam making. It’s also extremely satisfying!

You can find your nearest pick your own farm using this nifty website:

So with over 10 lbs of ruby red raspberries we headed home to make jam. Hurrah!

Mum wanted me to learn how to make jam “properly” and without shortcuts so I understand the process.

She got all her cool vintage preserve books out and ran through it all with me.

Raspberry jam is a great place to start for a beginner like me. It’s my favourite jam too so brucey bonus!

Next up we got out everything we’d need so that we could concentrate on the crucial setting stage once we got there.

Crikey – this is serious!!

Raspberry Jam


4lbs raspberries (not washed but any obvious muck picked out)
4lbs granulated sugar (no need for jam sugar)


Large pan
Big wooden spoon
Saucer and metal spoon (put in fridge)
Meths + two little jars for pectin test
Large jug
7 Freshly washed jam jars and clean screw top lids (no need for wax discs)
Sticky labels


Put your raspberries in the pan over a medium heat, stirring so the juice is released and the fruit gets mushy. Simmer gently. This process is softening the fruit to extract the pectin (setting agent) from the fruit.

Once the fruit feels suitably mushed and tender you can do the pectin test to check if enough of the setting agent has been released.

Take your two small jars. Pour a small measure of meths into one and then half the amount of your raspberry juices
into the other. Pour the meths onto the juices, swirl it around for a few seconds and then let it stand for a minute or two. Then pour the meths off into the other jar, and if pectin has been extracted the fruit will form a jelly-like lump.

Mine didn’t work first time so I simmered my fruit for a bit longer and then did the test again. It worked beautifully second time around and demonstrated exactly why this test helps make a better jam.

So with the pectin extracted it’s time to move on. Heat up the sugar in the microwave on full power for two minutes.

Put your freshly washed jam jars in the oven at 50C.

Take jam off heat and stir in your warmed sugar until it’s dissolved.

Put thermometer in, turn up the heat and boil rapidly until setting point is reached.

Temperature wise this is 220F on my mum’s thermo and there’s a fierce rolling boil going down in the pan. The colour of the liquid has deepened from a bright scarlet to a deep ruby red.

Remove pan from heat.

So now it’s time to check if it’s going to set. First do the Flake test. Dip a wooden spoon in the jam and remove it holding it above the pan, twirl the spoon a few times to cool the jam. Let the jam fall off the spoon. If the drips run together and form flakes that ‘hang’ on the edge of the spoon, a setting point has been achieved.

To confirm this do the cold saucer test Get your saucer and spoon out of the fridge, put a bit of your jam on the dish and whack it back in the fridge for a minute or two.

While you’re waiting spoon off any scum that may have formed on the surface into a little dish. I don’t think it should be called scum as it’s so delicious. Maybe jam froth would be more attractive? Whatever you call it, keep it coz it’s lovely!

So get your saucer back out of the fridge and draw your finger across the surface. If it’s startingto set a thin film should be forming and will crease as your finger goes over it. If it doesn’t then boil it a bit longer and try the test again.

Once you’re happy with your set, remove the jars from the oven onto a heat-proof surface. In batches pour your jam into a jug and then pour carefully into your jars about 1cm below the rim of the jar. The jam will shrink when it cools.

Wipe clean the tops of the jars and remove any more froth that may have formed. Then tightly screw on the lids.

Allow to cool and then label.

The kitchen smelt intoxicating throughout the jam making. I felt like I was at hogwarts in a potions class and especially enjoyed the sciencey experiment bits.

I’m grateful to have learned from someone with so much experience of preserves. I feel like it’s given me a good grounding and that I can go off and experiment a bit.

Above all I’m chuffed to bits with the beautiful jars of Shropshire raspberry jam i’ll be taking back to London -Thanks mum!


About Katie Bryson

Katie Bryson is a freelance food writer and blogger. She left a career in online news at the BBC to immerse herself in the culinary world, taking in courses at Leiths School of Food and Wine and an internship at Waitrose along the way. Her family food blog www.feedingboys.co.uk is bursting with recipes and tips for feeding hungry families that’ll help inspire all those frazzled parents out there wondering what on earth to cook for tea!
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23 Responses to Jam masterclass for a total beginner

  1. Wow! You are so lucky to have your mum show you how to do this! I’m a bit nervous what to do with the meths though?!

    • rhwfoodie says:

      My mum is a legend. Jam making seemed like a truly frightening prospect before she showed me how to do all the sciencey bits. The meths bit is v simple. We should do a jam sesh together – Jamming!

  2. Great post – thanks to you, and to your mum! πŸ™‚

    • rhwfoodie says:

      Thanks!!! I really enjoyed the whole experience and feel ready to try different flavours… Been to Lakeland this morning to get a thermometer and jelly bag!!!

  3. See, this is what I need to move on from my Hands Free jam but the meths bit sounds a little bit scary! Yay for you for making your first ever jam πŸ˜€

  4. Emma says:

    I think I might have to take Chick to a farm to ‘pick your own’. I’d forgotten quite how much fun that is! As for the jam making….I’m not sure if I’m brave enough to even attempt that…..maybe I’ll just pinch a jar of yours next time I’m in Town πŸ˜‰

  5. Michelle says:

    Methinks I need to get out to my nearest ‘pick your own’ and try something new. Thanks for explaining all the complicated bits and for the lovely pictures.

  6. nixdminx says:

    I made jam for the first time last year and I still have half a jar left. My tip is to make sure you use jars straight from the dishwasher; warm and sterile so that you don’t get mould growing on the inside, and only handle the jars from the outside. Lovely photos, PYO is a lot of fun

  7. Rosemary Hamilton says:

    I was very thrilled to be able to share my jam making skills with you and hope it will encourage others to have a go,it is a very rewarding exercise. I used to buy my meths from a local hardware shop (sadly now closed) and the owner always teased me about the purchase, but then remarked that he knew it was for some other use!
    Enjoy your jam.

  8. Tara says:

    Yum I’m planning some late September blackberry picking and jam making! Yours looks
    super tasty

    • rhwfoodie says:

      Thanks Tara! I’m defo going to get some bramble jelly on the go – i’ve bought a jelly bag and found a bounty of fruit at a local nature reserve – bonus!!!!!

  9. Kavey says:

    I got into jam making just last year, very satisfying!
    I have never heard of the meths test before though… do you need to do ALL the various tests for set?
    Most things I’ve read people do one or other, the spoon or the cold plate or the jam thermometer…
    I need to find out more about the meths one though!

    • rhwfoodie says:

      Hi Kavey!
      My mum always does the meths test – being a home economist and women’s institute member you can always count on her to do things thoroughly!!!
      You don’t need to do all the setting point tests – mum just wanted to show me them all.

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  11. LOVE this post and that all the WI teach the same way. The meths bit went a bit over my head in my master class. How did it taste? Are you going to enter any of the jars?

    • rhwfoodie says:

      The WI are such experts – I feel really lucky to have my mum as my cooking tutor!!! The jam tasted wonderful – I only have one jar left and am saving it for a special occasion. I would def have entered it for something but I’m not sure they do village shows in Ealing 😦 how was your jam?

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