The Complete Handbook of Food Cookers & Steamers

Chapter 1: Understanding Food Cookers & Steamers

Food cookers and steamers are a diverse category of kitchen appliances unified by a single principle: they apply moist heat to food to cook it. While the term encompasses devices as simple as a stovetop pot with a perforated basket and as complex as a self-contained combi oven, the underlying physics and the practical demands of professional cooking remain constant. This chapter defines the category, explains the mechanics of how these devices work, and establishes why they are indispensable in certain cooking environments.

Defining the Category

At the most basic level, a food cooker or steamer is any device that heats food in a controlled manner, distinct from a standard stovetop or oven. This definition separates it from cooking surfaces like griddles and broilers, which use direct radiant heat. Instead, the core of this category relies on either boiling water, circulating heated air, or a combination of both. The most common configurations you will encounter are rice cookers, countertop steamers, and floor-model convection steamers.

Let's disambiguate the terms. A "steamer" in the professional kitchen usually refers to a cabinet or chamber that cooks via surrounding the food with hot steam. This is a distinct subset of "cooker." A rice cooker, for instance, might use steam created within its sealed pot but is defined primarily by its cooking cycle, which manages water absorption. A pressure cooker, conversely, uses a sealed vessel to raise the boiling point of water, creating superheated steam. In this handbook,