A type of Udgama Doṣa (blemish of bhikṣā (accepting food etc. by going to houses for collecting them in conformity with the canonical instruction)) relating to origination or preparation of food etc.);
the mixing up of the pure (acceptable) food with impure (unacceptable) one which is impure on account of Ādhākarma (preparation of food etc. with decision to give it to monk).
śuddhasyāśuddhāvayavena pūtercipavitrasya karaṇaṃ pūtikarma.
(Prasā 564 UVṛ)