When is a wok not a wok? When it's a Tefal Wok! We purchased a Tefal Wok from a well-known online store in March 2020 and it has been used approx 3 times a week, cleaned and cared for properly. About 1 month ago food started sticking and the non-stick coating has disappeared. When our Wok developed this fault I emailed Tefal, included photographs of the offending item, my invoice and an expectation that they would promptly send me a replacement under their much trumpeted lifetime guarantee. I was in for a nasty surprise. When you look at the wikipedia definition of a Wok it talks a lot about cooking over a high heat, quickly cooking whatever you have in there, so retaining the taste and texture. The problem is, that according to Tefal, you must not cook anything in your Wok at a high heat because that will burn their non-stick coating, rendering it basically useless, as well as making their guarantee about as much use as an ashtray on a motorbike. Tefal are not budging on this. They seem to be happy with sending cut and paste replies - it took me 3 emails for them to actually send a personalised reply and admit that this wok did actually have a lifetime guarantee (but only if the non-stick coating blisters or peels). Tefal Customer Service score = a bit fat ZERO. It's like buying a kettle which you can't boil water in! I have come to the conclusion that a) I will never buy a Tefal Wok again, and b) you may as well buy a cheap supermarket Wok, rather than spend loads of money on Tefal woks, and just buy a replacement once a year. Tefal Woks - Fit for Purpose? Make up your own mind!