Addendum:
After about 9 months (150 roasting) begins the anti-adhesive effect in the middle of strong subside.
It is not really capable of learning and so another pan was purchased. This showed the above symptoms after 6 months.
The 5-year guarantee, of course, does not interfere, because we - deal with the pan wrong or take the wrong fat and it was not covered under warranty - - According to the manufacturer because it indeed hardly complaints were ... and we should turn our attention to the seller. Since, however, warranty claims rotates in the Amazon in a circle, we will not waste our still finite lifetime so.
Conclusion: We conclude that unfortunately we can not use in the nature of this product, as it is useful and beneficial to him for us and will carry out the pans for recycling.