rhubarb & ginger jam 

Preparation time: 15 minutes + overnight soaking

Cooking time:  35 minutes [approximately]

Makes: 1.5 litres

1.5kg [3lb] trimmed rhubarb [leaves and ends removed]

1.5kg [3lb] sugar [granulated or preserving]

125ml [4fl oz] lemon juice

4cm [1 ½ inch] piece of fresh ginger, bruised with a hammer and finely chopped.

115g [4oz] crystallised or glace ginger finely chopped,.  Amount can be varied according to taste.

1. Cut the rhubarb into short pieces and alternatively laying with sugar and lemon in a glass [non-metallic] bowl and leave to stand over night. [Use later season mature rhubarb rather than the young slender spring stems for jam making.]

2. Next day scrape the rhubarb and sugar mixture into a large pan.  Place the bruised and chopped fresh ginger on a square of muslin [cheesecloth], tie securely with string and add to the pan.  Stir over a low heat for 5 minutes until the sugar has dissolved.  Bring the mixture to the boil and boil rapidly for 15-20 minutes stirring often.  Remove the root ginger and stir in the crystallised ginger. NB when I made this recipe I didn’t have any muslin so just added the grated ginger straight into the pan – it was fine!

3. Test for setting point when the jam looks thick and syrupy [see below].  When set, remove from the heat. Remove any scum from the surface with a large spoon. Remove and throw away the root ginger muslin bag and stir in the crystallised ginger.

4. Transfer the mixture to a heat – proof jug [can use a ladle and funnel] and immediately pour into warm jars, wipe down and add lids.  [See below]

5. Leave to cool. Use within 12 months of making.  Refrigerate after opening and use within 6 weeks.

Tips:

  • Try not to cook too much jam in one go. Do not use more than 4lb of fruit in a recipe at a time.
  • Make sure your pan is large enough and preferably, is heavy-based   Adding sugar increases the volume.  Jam can rise up the pan when boiling.
  • Bottles [jars] – check there are no chips or cracks.  Wash bottles and lids in a dishwasher or hot soapy water and rinse well. Dry and sterilise the bottles in the oven.  Place on a baking tray and leave in an oven [preheated to 120 degrees Centigrade/Gas Mark ½] for 20 minutes or ready to use.
  • Successful jams and preserves need an even balance of acid and pectin in the fruit.  Sugar and pectin play a part in the final firmness and flavour.
  • Sugar – is not simply a sweetener but is a preservative when used in high concentration as it acts to stop the development and growth of micro-organisms.  It is also a setting agent and aids the setting process in jams and jellies.  Acid in fruit forms a similar function.
  • Pectin – is found in the skin, flesh and seeds of most fruits to varying levels.  To test, place 2 teaspoons of methylated spirits in a cup, gently add 1 teaspoon of strained fruit mixture and stir gently.  It there is enough pectin to set the jelly or jam, clots should form into one large clump.  If they form only small clumps you will need to add some lemon juice to the mixture in the pan.
  • Cooking times – vary greatly depending on the size of pan used, fruit used, whether it is in season, it water content etc.  Therefore it is best to test the setting point sometimes 10 minutes before the time stated in the recipe.  Do not rely only on the times given.
  • Testing for setting point: Take a large spoon of jam, tilt it  and it should fall from the spoon heavily with 3 or 4 drops joining together as they drop.  They may form a sheet and be slow to drop.  It is ready for bottling.  Alternatively you can take a teaspoon of jam, put onto a cold plate [need to put these into a freezer when you begin], return to the freezer for 30seconds or till cooled to room temperature. There should be a skin on top of the jam which wrinkles if you gently push it with your finger – tip.
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One thought on “rhubarb & ginger jam 

  1. This recipe was really fiddly to make, mainly because you had to prepare part of the recipe the day before and leave to soak overnight. Any alternative recipes would be welcome!

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