Blackberry Jam – “How To Make” Recipe From The Jam Jar Shop

Posted by Neil Smith on

Blackberries are naturally high in antioxidants and have been used for centuries as a health-boosting food. Blackberry-picking is a well-loved pastime and getting creative with the small berries is the second part of the fun. Our jam jars are perfect for storing beloved blackberry jam, and we have the recipe for you. 

Recipe Ingredients

  • 1.8 kg blackberries
  • 1 ½ kg jam sugar with added pectin
  • 1 lemon
  • A knob of butter

Recipe Equipment

  • Sterilised Small Saucers
  • Preserving pan
  • Tea-leaf strainer
  • Ladle or Wooden Spoon 
  • Mixing Bowl


In preparation prior: 

  1. During the evening beforehand, layer the blackberries and jam sugar together in a large bowl 
  2. Cover the bowl and set aside 
  3. Stir together the next morning until you are set to begin

When making the jam:

  1. Before beginning, place a small saucer in the freezer 
  2. Tip the berries into a preserving pan 
  3. Scrape out all the juices and undissolved sugar
  4. Stir in the lemon juice and collect the pips
  5. Secure the pips in a tea-leaf strainer before adding to the pan
  6. This step will help the jam to set as it extracts the pectin
  7. Put the blackberries over a low heat until the sugar has dissolved entirely
  8. Now bring to the boil and simmer for 5 minutes
  9. Turn off the heat and spoon a small amount of jam onto the chilled saucer
  10. Lightly push in with your finger after a minute has passed 
  11. If it wrinkles, it has reached the setting point
  12. If it is still runny, return the pan to heat
  13. Repeat after around 3 minutes with the same test
  14. Skim off any ‘scum’ that has accumulated
  15. Stir in the knob of butter, only a finger-size is necessary
  16. Leave to cool for 15 mins
  17. Scoop the jam into your sterilised jars so the fruit can settle
  18. Wait for the jam to cool completely and store in a dark place.
  19. Blackberry jam can be stored for 6 months unopened 

Blackberries are multi-faceted fruits beloved by many when it comes to getting crafty in the kitchen, and what better way to settle into Autumn than the make a classic blackberry jam using our helpful recipe.

To browse our range of glass jars for optimum storage and presentation, contact our experts today.

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