In reply to Philip:
Hi Phil,
Thanks for that.
We have used both the Copper triply and copper base on industrial induction hobs, they seem to be more powerful than domestic ones.
The steel sheet that is bonded to the John lewis pan will enable you to use the pan on your hob so that will be a better fit for you, however from the testing we have had done I can tell you that you would be better off sticking with your straight stainless triply instead of the copper, you'll find that they are more efficient on your domestic hob. The anodised aluminium that you have is not steel cored but has an induction plate pressed into the base, this is similar to the John Lewis pans however the attachment to the aluminium is more secure than the attachment to the copper.
No non stick is truely metal tool safe, we use teflon platinum plus on our pans, this is the most premium non stick available, the PTFE layer is reenforced with ceramic particles. the testing we have had done in conjunction with DuPont shows that their non stick coating will pass the British Standard testing 9 times over before failing, but fail it will. We suggest that customers who would want to take care of their pans would do better to use wooden or plastic utensils whilst cooking as this will extend the life of the pan. The restaurants who use our pans all comment on how durable the non stick is.
If you want any more information then bob me an email and I can go into the testing we have had done on our pans.
Thanks
Rob