Mishnayos Terumos Perek 11 Mishnah 8

המערה – [one who pours] wine or [olive] oil of Terumah/heave-offering from one pitcher to another, and after he had poured everything that is in it, three drops dripped from it, one drop after another, in the manner of the utensils after he had poured out everything that was within them.

נותן לתוכה חולין – and there is no need to wipe off/cleansse it well prior to putting into it the unconsecrated produce.

הרכינה – he tilted it on its side, for the barrel had it in it other heave-offering that he poured all all what was within it and sucked out the wine or the [olive] oil that it was init and it appears that it was gathered into it.

הרי זו תרומה – and we don’t say that they are unconsecrated [produce] for since he poured all what was inside it and there dripped from it three drops.

בתרומת מעשר של דמאי – hat the tithe is his, and he gives (as a Levite) the Terumah of the tithe to the Kohen, and if he has in his hand one-eighth of an eight of a LOG, one must brig it to a Kohen, but not less than this. And these words refer to something impure, but something pure, even a little bit, one must search after that which is doubtfully tithed, but with something definitely tithed, whether impure or pure, whether a lot or a little, one must search after a Kohen.