It feels satisfying to have a good stock of fruit and veg bottled, jammed, frozen and dried ready for the winter. We are using more Kilner jars now to save freezer space. To freeze our fruit we cook with a little sugar, sterilise the jars in the oven and the lids with boiling water. Fill the jars when everything is hot and screw down tight. The Kilner tops will pop up if the fruit is not keeping.