This is an easy one to answer. The differences between the Scanpan Classic & Professional lines are largely cosmetic. Handles The Classic range features stay-cool handles that are not fastened to the pan with rivets. The Professional range has stainless steel handles that are riveted to the pan. This, admittedly, provides a little extra durability in the long run! Lids Classic Scanpan cookware features glass lids. Professional Scanpan cookware features stainless steel lids. Coloring The Classic Scanpan line features a dark gray interior non-stick cooking surface. The Professional Scanpan line has a darker black non-stick cooking surface All other things in terms of performance, strength and durability remain the same.