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1.5-2 kg
Easy
Published 1991
Soft fruit jams or ones made from non-pectin ingredients such as rose petals benefit enormously from pectin sugar because the mixture will set with only the briefest of boiling so the fruits retain their juicy freshness.
Put the raspberries in a preserving pan with the strained orange and lemon juices. Stir in the pectin sugar and bring gradually to the boil over a medium heat. Boil vigorously for 3-4 minutes and test for a set. When setting point has been reached, pour into clean, dry, hot jars and seal.