The effects of cooking at elevated temperatures (80, 100, 120 and 140 C) and pressure levels (0, 0.1, 0.3 and 0.5 MPa) on the textural
and morphological properties of cooked Jasmine rice were investigated. The developed high pressure cooker was utilized to process
Jasmine rice in excess water under isothermal conditions. Rice cooking at higher temperature produced softer and stickier grain
texture as well as more off-white colour. Using scanning electron microscopy technique, the microstructure revealed that the soft texture
at high cooking temperature corresponded well to the increase of pore size and thickness of the sponge-like texture of inner layer
endosperm. As the temperature increased, the outer layer of cooked rice became less porous. Boiling significantly altered the external
appearance (namely colour and exterior integrity) and texture of cooked rice while cooking pressure had a little or no effect.