I have a ‘blister’ on the base of my pan – what should I do?

The most likely cause of the fault is a “hot spot” in the base which has, over time, made the base separate from the pan. A hot spot is where an air bubble has been trapped within the sandwich base when the pan was made. If the bubble is pushing upwards inside the pan it creates an area where the pan will not heat up. If the bubble is pushing down towards the base it creates an area in the pan that becomes hot while the remaining area stays cool. Eventually, after heating and cooling during cooking, the base will become detached and may even be pushed off completely. The other major cause of these blisters is human error where the pan has boiled dry. This can damage the seal between the pan body and the base which may also cause warping in the base. Please contact Customer Services who will evaluate whether the problem is covered by the guarantee.