Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Burning when used with gas

The three previous reviews, while not in agreement, point out one serious flaw in this cookware for some gas users.We have had a set for nearly 15 years and it worked fine when used with electric stoves. We now have a professional gas cooktop with very large burners. As a result, we get burning along the sides of the pots.The base of each unit has a thick copper core that promotes even heating. The heat from the gas flame causes burning to occur along the sides where the metal is thin.We are planning to convert most of our cookware to thicker units (All-Clad or Calphalon style) as we replace them.