Which of the following is a common use for a double boiler?

A double boiler is specifically designed to gently heat contents without direct contact with a heat source, making it an ideal tool for delicate tasks. Melting chocolate requires a careful approach, as chocolate can seize or burn if exposed to high direct heat. The setup of a double boiler mitigates this risk by allowing steam to gently warm the bowl containing the chocolate, enabling it to melt smoothly and evenly.

Using a double boiler for melting chocolate allows for better control over temperature, which is crucial when working with ingredients that can easily be damaged by heat. This technique is particularly valuable for those in culinary arts who want to create perfectly melted chocolate for coatings, ganaches, or confections without compromising the texture and flavor.

In contrast, frying foods, steaming vegetables, or baking bread typically require different cooking methods and equipment. Frying relies on direct high heat, steaming utilizes moist heat to cook food quickly, and baking involves dry heat in an oven. Therefore, these practices do not align with the specific applications of a double boiler.