Steam cookers are typically measured in which of the following?

Steam cookers are typically measured in PSI (pounds per square inch) because this unit indicates the pressure at which the cooker operates. Steam cooking often relies on the generation of steam under pressure to cook food efficiently and quickly, which allows for higher cooking temperatures than conventional boiling. The ability to reach higher pressure enhances the cooking process, leading to faster meal preparation and improved food texture and flavor.

Measuring steam cookers in PSI is especially relevant for pressure cookers that utilize steam as the primary means of cooking. This pressure creates a sealed environment, allowing steam to build up, which leads to cooking at higher temperatures and speeds up the cooking process significantly compared to boiling at normal atmospheric pressure.

Other options, such as temperature, voltage, and size, while relevant in the context of cooking appliances, do not specifically address the operational parameters of steam cookers as effectively as PSI does. Temperature can be an aspect of steam cooking, but it is the pressure that fundamentally governs the cooking process in steam cookers.