How to sterilise jars
The aim is to finish sterilising the jars and lids at the same time the preserve is ready to be bottled. Jars which aren’t sterilised properly can cause deterioration of the preserves during storage. Start with washed jars and lids, then follow one of these methods: 1. Put jars and lids through the hottest dishwasher cycle without detergent. 2. Lie jars down in a boiler with the lids, cover with cold water, then cover boiler with a lid. Bring water to the boil and boil the jars for 20 minutes. 3. Stand jars upright, without them touching, on a wooden board on the lowest shelf in the oven. Turn oven to the lowest possible temperature; leave jars to heat for 30 minutes. Remove jars from dishwasher or oven with a towel, or from boiling water with tongs and rubber-gloved hands. Stand jars, not touching, on a wooden board or a bench covered with a towel. Fill the jars; secure lids tightly. Leave at room temperature to cool before storing.