The discussion of this kind of meat requires that the original source cells be taken from an animal that had been slaughtered properly so that the meat was kosher to begin with. Thus, it would not be eiver min hachai.
Orthodox groups debate kashrut of lab-grown meat
Several key conditions would have to be met to create kosher, parve
The tissue samples would have to come from an animal that had been slaughtered according to kosher rules, not from a biopsy from a live
animal, Genack said.
The principle underlying this theory is much like the status of
gelatin in Jewish law: Though it is derived from an animal, it is not
meat (the OU certifies some bovine-derived gelatin as parve).
Genack noted another source for viewing cultured meat as parve: a
19th-century Vilna-born scholar known as the Heshek Shlomo wrote that
the meat of an animal conjured up in a magical incantation could be
considered parve. It may not be too much of a stretch, then, to apply
the same logic to modern genetic wizardry.
The Chabad movement, however, believes that any such cultured meat
would be considered as meat and would lack any such parve status.
Writing on Chabad.org, Yehuda Shurpin also discussed magical meat,
citing a Talmudic discussion of meat conjured by magic or delivered
from heaven, but said that neither could serve as a precedent for
If the cells extracted from the animal in order to grow the meat “are
considered substantial enough to be called meat, this may present a
problem,” Shurpin stated.
Such meat, he theorized, could violate the biblical prohibition of
eating meat severed from a living animal.
“For Jews, if the cells are considered real meat, then presumably they would need to be extracted from a kosher animal that was
slaughtered according to Jewish law,” he wrote.
However, “these are just preliminary thoughts on the subject,” he was
careful to note.