Rasarnava 11.210

11.210

śodhanaṃ sūtakasyādau grāsamānamataḥ param
jāraṇaṃ vyomasattvasya sarvasattvasya jāraṇam //

First is purification of mercury; after that, the measure of the mouthful;
digestion of mica essence, and digestion of all essences;