The connoisseur of the kitchen needs cookware that promotes slow cooking of delicate dishes without affecting flavors. The fine textures of custard, chocolate, and sugar syrups are all easily ruined by the poor thermal conductivity of an inadequate metal. To avoid scalding and harsh temperature changes, 12" - 13" high stainless steel double boilers need to provide the optimum distance between the upper pot and the water below. A poorly suited set increases the amount of evaporation and condensation that is returned to the dish, resulting in watery flavors and textures. For this reason, it is best to select 12" - 13" high stainless steel double boilers which are manufactured as a set rather than creating makeshift cookware out of stock and sauce pots.