Thanks very much for the information sabby!

Makes a lot of sense. I did some google searches also and it backs it up especially as there seems to be a pattern to it. Me and dentists don't get on so I'm sticking to soft food at the moment! My hearing has returned but still have the buzzing/ringing going on.

Nice store of kitkats in the cupboard, just wondering if they'll taste just as good if I melt them.