The pressure control ability in some advanced rice cooker refers to the cooker's capability to control and adjust the internal pressure during the cooking process. This feature is typically found in high-end rice cookers, especially those designed for cooking specialized rice varieties like sushi rice or other grains like quinoa. Here's how pressure control works in rice cookers:

Pressure Cooking: Some rice cookers have the ability to function as pressure cookers. In these models, the cooking chamber is sealed airtight, and pressure is generated within the chamber by heating the liquid (water or broth) inside. This elevated pressure increases the boiling point of water, allowing for faster and more efficient cooking.

Pressure Sensors: Pressure-controlled rice cookers are equipped with pressure sensors or transducers that monitor the pressure inside the cooking chamber. These sensors provide real-time feedback to the cooker's control system.

Control Algorithm: The rice cooker's control system includes a control algorithm specifically designed for pressure cooking. This algorithm manages both temperature and pressure to ensure optimal cooking results.

Adjustable Pressure: The control system can adjust the pressure inside the cooking chamber by regulating the heating element's power and controlling the release of steam. Higher pressure levels can be used to cook certain types of rice, like sushi rice, more quickly while achieving a desired texture.

Cooking Flexibility: Pressure control allows for greater cooking flexibility, making it possible to cook a wider variety of grains and rice types with precision. It can also accommodate varying altitudes and external conditions, which can affect cooking times and results.

Texture and Flavor: By controlling pressure along with temperature, these rice cookers can produce rice with specific textures and flavors desired for particular dishes. For example, sushi rice should have a sticky, slightly firm texture, which pressure cooking can help achieve.