Anandakanda 1.23.45

1.23.45

nirudhya taṃ mṛdupuṭe tridhā pācyaṃ punaḥ priye /
ādāya dṛḍhamūṣāyāmandhayitvā dhametsudhīḥ //

having sealed it, it is cooked three times in a mild pit of cow-dung cakes, O beloved; / having taken it out, the wise one should blind it inside a sturdy crucible and blow with the bellows.