Originally posted by *GULLY*:
Forget what Delia said, i had a look in my Gary Rhodes book and according to him you prepare the jars as follows:
Warm sterilised jam jars and jam pot covers - prepare jars by washing in hot soapy water and leaving to dry and warm in low oven at - 130C/250F/Gas ½ for 10-15 minutes.
I do have a lot of cookbooks as i love cooking