פירוש על חלה 3:1

אוכלין עראי עד שתתגלגל – when it becomes combined well, because there is no designation of the term “dough” until it is rolled [and shaped].

Introduction Our mishnah deals with the question of when one can eat dough without separating hallah.

ותטמטם בשעורים – because the dough of barley scatters and does not combine well with the dough of wheat, but rather kneads into a cohesive shapeless mass in the hand

One may snack from dough, until it is rolled, in [the case of] wheat [flour], or before it is made into a solid mass, in [the case of] barley [flour]. A person can eat a piece of dough as a snack even though hallah has not yet been removed from it. This is true as long as long as it has not yet been rolled, if the flour was made of wheat, or made into a solid mass, in the case of barley. Wheat flour is finer and therefore, it is considered dough once it has been kneaded well and rolled out to make loaves of bread (flat like pita). Barley flour is coarser and therefore it is considered dough once she gets it to stick together into a lump. This rule should be familiar if you have already learned Tractate Maasrot. There we learned that in general one can snack from produce before its processing has been completed.

חייב מיתה – for its work had been completed and it is an eatabler forbidden pending the separation of sacred gifts, becomes [liable for] death [if consumed].

[Once] one has rolled it [in the case of] wheat [flour], or made it into a solid mass, in [the case of] barley [flour], one who eats it is liable for death [at the hands of heaven]. After it has been either rolled or made into a solid mass, a non-priest who eats it is liable for “death at the hands of heaven.” This is the same penalty for a non-priest who eats terumah, and as we have seen, the laws of hallah are frequently derived from the laws of terumah, because the Torah calls both “holy.”

מגבהת חלתה – it is the ordinance of the Sages regarding ritually pure dough to rush to separate Hallah in purity, lest the dough become ritually impure, for the essence of the Mitzvah is to wait until the completion of the kneading.

As soon as she puts in the water she should lift out the hallah, provided that there are not five-fourths [of a kav] of flour left there. The way to avoid this severe penalty is for the woman to remove the hallah from the dough as soon as she puts water in the flour. Even though one could snack on it until it is rolled or made into a solid mass, this is not advisable, because it might lead one to snack on it at a later point. The version of our mishnah reads “provided that there are not five-fourths [of a kav] of flour left there.” This is interpreted to mean that if even after she removes hallah before it has been kneaded, there remain 5/4 of a kav, then the problem has not been solved, because she took out hallah to early she should only take it out once it has been kneaded, and not as soon as the water has been mixed in with the flour. Another version of this section reads, “as long as there are 5/4 of a kav of flour there.” If there is not such a measure, she should not take out hallah, even if she will add more flour later on.

ובלבד שיהא שם חמשת רבעים קמח – that had been combined in water, for less than this, the dough did not reach to the general obligation for Hallah. And there are books which have the reading: ובלבד שלא יהיה שם חמשת רבעים קמח/ and as long as there will not be there five-fourths flour, that is to say, that there should not remain five-fourths flour that was not mixed/combined with water, for if there remained five-fourths, they would not be exempt from Hallah if he separated it prior to be rolled [and shaped]. And in the Jerusalem Talmud, we prove that if he said, “Behold this is Hallah,” on the leaven and on the dough and on the flour that remains after the dough had been rolled [and shaped], all of it is sanctified/dedicated in my hands for the sake of Hallah, this would be permitted. And similarly, a person should teach the women to say this as we separate Hallah, immediately after rolling [and shaping] the dough, but before the forming of the bread.