you need to go by wide-mouth lids

I make medlar jelly, most years it is hard to get to set. So last year I made a lot, and put some liquid in bottles, as it usually stays liquid. Only to find they had set (without added pectin)!
GF suggested re-heating to melt the jelly. I made so much I am still consuming the jars. I put it in plain yoghurt.
Anyone in Gloucestershire who wants a load of medlars PM me or webmail me from Mister.red cntact page, but be quick, they must be bletting now. Pick yer own!