The Complete Handbook of Tureens

Chapter 1: Understanding Tureens

A tureen is a serving vessel designed to hold and dispense liquid or semi-liquid food — soup, stew, sauce, gravy, or broth — at a table or buffet. That definition is simple, but it obscures the fact that a tureen is also a machine. It has a body that stores thermal energy, a lid that affects both heat retention and hygiene, a spout that controls pouring geometry, handles that carry loads, and a glaze that must survive thermal cycling and chemical attack. Every one of these subsystems is specified by a number — capacity in liters, thermal conductivity in watts per meter-kelvin, coefficient of thermal expansion, glaze hardness on the Mohs scale — but very few buyers ever see those numbers. This book is organized around the principle that a tureen is a system with measurable parameters, and that decisions about buying, using, and maintaining one should be based on those parameters rather than on looks, brand, or received wisdom.

The first thing to understand is that the tureen's primary job is not aesthetic. It is thermal: it keeps contents at serving temperature for the duration of a meal. Consider a standard restaurant soup service. The kitchen produces soup at 85°C in a pot, transfers it to a tureen, and the server carries it to a table. Assuming the tureen is preheated (which we will cover in Chapter 4), the soup enters the tureen at roughly 80°C. Room temperature is about 21°C. The rate at which