Tosefta sobre Terumot 4:7

Orlah (fruits in the first three years of growth) and mixed-kinds of the vineyard are lifted up (i.e., neutralized such that they may be consumed) in [mixtures with permissible fruits in proportions of] two hundred and one [to one] (Orl. 2:1). One need not combine them, and thus Rabbi Shimon said, all terumah that the Kohanim are not particular about , there is no need to combine. Terumah, orlah, and mixed-kinds of the vineyard -- if there is an uncertainty, they are permitted. An uncertainty if they were eaten, an uncertainty if they were stolen, an uncertainty if they were lost, an uncertainty if they fell into chullin -- these uncertainties render them permitted.

Rabbi Yehuda says, sweet pomegranates are forbidden in any quantity. How so? One of them [designated as terumah] fell inside ten thousand (רבוא) [of chullin], all are forbidden. [Even if] it fell from ten thousand inside another ten thousand, all are forbidden. Rabbi Shimon ben Yehuda says in the name of Rabbi Shimon, [if] one of them fell inside ten thousand, all are forbidden, [but if one] fell from ten thousand inside a third [container of ten thousand], and from the third [container] to another place, [at that point there is a] doubt whether they are forbidden because it is a a doubt regarding a forbidden mixture [which is treated leniently]. Said Rabbi Yehuda ben Bava (per MSS), "I am one of those fit to issue a ruling, and if they were to bring me beet shoots, I say, that they would be lifted up in [a proportion greater than] one hundred and one [to one], and not only that, the Beit Din should issue a ruling that in every case [involving any species, terumah mixed with chullin is] lifted up at one hundred and one [to one]."

Terumah gourds that are mixed up with one hundred [times as much] chullin gourds, and so too loaves of showbread that got mixed up with one hundred [times as much] loaves of chullin bread, behold, these may be lifted up. Rabbi Yehuda says, they are not lifted up -- if this loaf touched that loaf it becomes impure, and if it was eaten, it is disqualified. [And if it] becomes disqualified [through contact with] a tevul yom (one with a seminal emission who cleansed himself through ritual immersion later that day), all agree that it may be lifted up.

Untithed produce that gets mixed up with chullin, behold, it is forbidden in any amount. If he has another batch [of produce] in a different location, he may take it out according to the calculation, and if not, Rabbi Eliezer ben Arakh says, he designates the terumah of tithes that are inside [the mixture] and he lifts it up at one hundred and one [to one]. And so too with tithes taken from untithed produce that got mixed up with chullin, behold, it is forbidden in any amount. If he has a batch in a different location, he may take it out according to the calculation, and if not Rabbi Eliezer ben Arakh says, he designates the terumah of tithes that are inside [the mixture] and he lifts it up at one hundred and one [to one]. And if it was untithed produce of first tithe or second tithe, behold, it is forbidden, as they did not permit a doubt as to a forbidden mixture except as to something that has permissible factors (i.e., where it is possible that all of the resulting produce may be consumed). Rabbi Shimon says, any matter that has permissible factors, such as untithed produce and second tithe, or consecrated produce, or new produce, the Sages did not provide a fixed measurement [to nullify it]. And any matter that does not have permissible factors, such as orlah and mixed-kinds of the vineyard, the Sages game them a fixed measurement [by which the mixture could be nullified]. They said to him, and what about seventh-year produce that does not have permissible factors but the Sages did not give it a fixed measurement [to be nullified if mixed with other produce]? He said to them, seventh-year produce [mixed with other produce] is not forbidden in any amount, rather it must be removed (biur), but to eat it they did not forbid it except if it imparts taste [to other foods].