Blackpool rock maker leads crusade to protect British seaside staple

Rock of ages: Only 30 people in the UK are skilled enough to make traditional lettered rock. Photograph: Christopher Thomond/The Guardian

Today, Parma Violet, bubblegum and salted caramel flavours are being made. On other days, it could be banoffee pie, hot chilli, the nuclear-strength super sour or, for an afterwork treat, Jägerbomb-flavoured rock.

At a small factory making Blackpool rock, the flavours might be different from previous generations but the techniques and skills are the same as they were 60 years ago.