This site has a lot of IR camera shots of various pans, and you can clearly see the hotspots: https://www.centurylife.org/how-to-choose-cookware/ https://www.c

This site has a lot of IR camera shots of various pans, and you can clearly see the hotspots: https://www.centurylife.org/how-to-choose-cookware/ https://www.centurylife.org/how-to-choose-cookware/ It's what inspired me to try out clad, and I'm glad I did. My cast iron mostly sits unused now.