After 18 months of using the weld between the bottom of the pan and the sole stainless soxyde (do not put in the dishwasher occasionally!). According to the SAV debuyer "this phenomenon is common" and "not this nempêche operation of the product." The problem is: 1 / that this corrosion (about 1 to 2mm) shows that the edge of the sole which is very sharp and 2 / that the solder that has been "eaten away" finished in wash water (the presence of nickel , chromium and aluminum?). I suggest to prefer branded stainless pans whose entire surface is covered with stainless steel. A book for people who wash by hand only, in this case they seem to me a good price / quality ratio. Handle system compatible with iron stoves of the same brand.