You want pots to conduct heat, not contain it. The closest comparison is cast iron which has a large mass, so heat ebbs and flows from it slowly (and, is more c

You want pots to conduct heat, not contain it. The closest comparison is cast iron which has a large mass, so heat ebbs and flows from it slowly (and, is more consistent). Insulation would mean you have an even harder time transferring heat to the pot, so it's not only worthless, it's actively bad.