Copper Core

Heat up and give even heat. A little hard to clean. Very well built. I would buy again.

What a great Cookware set from all clad: Pros: 1. Heavy and solid: this thing is built like a tank, and will probably last me for the foreseen future. 2. No matter what I cook, it is possible to bring it back to 'like new' condition depending on how much work I'm willing to do on cleaning. 3. Unlike other materials, safe for use with whatever tools I wish, and whatever I want to cook. 4. Heat distribution: Great, and it shows. 5. Handle: stays cold during cooking, and also allows great grip. Cons: 1. From what I've read not much difference from the d3, so not a great value/cost as the d3. However, I knew that, and wanted it anyway (because 5 layers with copper is cool) because its a buy-for-life purchase anyway. 2. Heavy: Not as cast iron, but still heavy, and takes a while to get used to cleaning. 3. The copper ring: get to be tainted green very fast, and not worth the hassle to clean back. So while initially it looks cool, in practice, it's ugly on a day to day. 4. Learning curve: there is some learning to be done on how to use stainless steel instead of non-stick, but in the end it is worth it. 5. Rivets: they make it somewhat harder to clean near them, however in the long run they are worth it, since the handle will not come off.

A beautiful quality set and the pans and saucepans are a good size. Having said that the lids are poorly designed as the get so hot they burn my fingers.

Extraordinarily well made. Beautiful balance, great to handle, easy to clean.

These are the best pans we have ever purchased. They heat evenly and quickly. Expensive, but I expect them to be used by our children after we are gone :)