I include this photo solely for completeness. I have no idea what is going on. Personally I think it is an elaborate excuse as to why a pair of lady's tights were found in the brewery. Must have some basis in fact though because the boys from Fullers said that being a more traditional brewery they prefer to use stockings and suspenders.
The wort is now in the copper and a vigourous boil was needed. Perhaps not this vigourously though as the kettle was quickly bubbling over.