One may eat incidentally from the dough before it is rolled, in the case of wheat flour, or before it was mixed into a cohesive unit, in the case of barley flour. Once one has rolled wheat flour, or mixed barley flour into a cohesive dough, one who eats from it is liable for death [for eating Priestly food]. As soon as she puts in water, she should separate the Challah, provided that there is not [the minimum quantity of] five quarters of a Kav [specific unit of volume] of flour there.

If her dough became Meduma [mixture of Chulin (permitted foodstuff) and Terumah (a portion of a crop given to a Kohen) that is forbidden to non-Kohanim], before she rolls it, it is exempt from Challah, as Meduma is exempt; after she rolled it, it is obligated. If there was a doubt [concerning purity] before she mixed, it may be completed while she is in a state of impurity; after she rolled it, however, it must be completed in a state of purity.

If she consecrated [to the Temple] her dough before rolling it, and then redeemed it [value onto a consecrated coin], it is obligated [in Challah]. If she consecrated after rolling it, and redeemed it, it is also obligated. But if she consecrated it before rolling it, and the [Temple] treasurer finished the rolling, and then she redeemed it, [the dough is] exempt, as at the time the obligation took effect, it was exempt.

Similarly, if one consecrated their produce before the point of obligation Ma'aserot [tithes] took effect, and redeems it, it is obligated in Ma'aserot; and if one redeemed after it had reached the point of obligation for Ma'aserot, it is obligated in Ma'aserot. But if one consecrated it before [the point of obligation in Ma'aserot], and the [Temple] treasurer completed it, and then the owner redeemed it, it is exempt, as at the time the obligation took effect, it was exempt.

If a non-Jew gave [flour] to a Jew to make dough for him, it is exempt from Challah; If he gave it to him as a gift: if before rolling the dough, it is obligated; but if after rolling it, it is exempt. If one makes dough together with a gentile, and if the Jew's share is not [at minimum] the minimum for Challah, the dough is exempt from [taking] Challah.

A convert who converted to Judaism and had dough: if the dough was made before he converted, it is exempt; after he converted, it is obligated. If he is in doubt [whether he mixed the dough before or after his conversion], it is obligated and [a non-Kohen who accidentally ate this Challah] is not obligated for paying the extra fifth [to the Kohen]. Rabbi Akiva says, it all depends on [the time of] the formation of a light crust in the oven.

If one makes dough from a mixture of wheat and rice, and the dough has the taste of the grain, it is obligated in Challah, and a person may use it to fulfill one's obligation [of Matsah [unleavened bread] on Passover. But if it does not have the taste of the grain, it is not obligated in Challah, nor may a person use it to fulfill one's obligation on Passover.

One who takes leaven out of dough from which Challah had not been removed and puts it into dough from which Challah had been removed: if one has a supply [of dough] from another place, one can take out [Challah] in accordance with the precise amount; but if one does not, one takes out one [portion of] Challah for the whole [dough].

Similarly, if olives of [regular] harvesting that became mixed with olives [left over] for striking-off [by the poor, that are exempt from Ma'aserot], or grapes of [regular] gathering, with grapes [left over] for gleaning [by the poor]: if one has a supply from another place, one can take out [the necessary tithes] in accordance with the precise amounts. But if one does not [have a supply from another place], one takes out Terumah and Terumat Ma'aser [a tenth of the tithe given to a Levi which must, in turn, be given to a Kohen] for all of them. And as for the rest, [one takes out] Ma'aser [Rishon, the first tithe of produce, which must be given to the Levi] and Ma'aser Sheni [the second tithe of produce, which must be taken to Jerusalem and consumed there] in accordance with the precise amount.

One who takes leaven from dough of wheat [flour] and puts it into dough of rice [flour]: if it has the taste of grain, it is obligated in Challah; if not, it is exempt. If so, why did they say: “Untithed produce of any amount renders food prohibited”? That is [with regard to a mixture of] a kind with its own kind, but [with regard to a mixture of a kind] not with its own kind, [rather] only when it imparts taste.