The Compendium of Caraka 1.27.13

1.27.13

śītaḥ snigdho 'aguruḥ svādustridoṣaghnaḥ sthirātmakaḥ/
ṣaṣṭikaḥ pravaro gauraḥ kṛṣṇagaurastato 'anu ca//

Ṣaṣṭika rice is cold, unctuous, light, sweet, subduing the three doṣas, and stabilizing; / the white is superior, and next to it is the black-and-white.