preserving jars

[Polly Fouracre]

I have bought a box of new honey jars for my jams and chutneys. They all look the same :-) very neat.
I would like (I think) to enter a jar in village show. On the subject of wax discs.... must i use them for showing?
The honey jars work well for me, I use plastic lids, when I put the lids on the hot jam, it seems to for a vacuum that helps seal the jars, is this ok though?
What do the judges look for in jams and chutneys....?
Help greatly needed, very nervous of entering a show.....gulp!

Ask the secretary of your local Horticultural Society(find in local library)I am forced,by my sister,with my arm twisted up my back,to find exhibits for all our local shows-often with surprising and gratifying results!! Good fun I suppose for a competitive nature!