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Nullification: Difference between revisions

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===Biryah (Complete Unit)===
===Biryah (Complete Unit)===
# A complete creature or limb isn't nullified even in a mixture of foods that have a dissimilar taste.<ref>Darkei Moshe 100 cites the Isur Veheter who says that biryah is permitted if it is mixed with ingredients of dissimilar tastes. Shulchan Aruch 100:3 rules like the Rashba that biryah isn't nullified.</ref>
# A complete creature or limb isn't nullified even in a mixture of foods that have a dissimilar taste.<ref>Darkei Moshe 100 cites the Isur Veheter who says that biryah is permitted if it is mixed with ingredients of dissimilar tastes. Shulchan Aruch 100:3 rules like the Rashba that biryah isn't nullified.</ref>
# There are four conditions for a prohibition to be considered a biryah: 1) It was a living creature,<ref>Macot 16a, Rosh Chullin 7:33, Shulchan Aruch YD 100:1</ref> 2) It was forbidden from its creation,<ref>Rashi Chullin 102b s.v. tameh</ref> 3) It is complete,<ref>Gemara Macot 16b, Tur 101:6 and Shulchan Aruch YD 100:1</ref> 4) It isn't called by its original name after it is cut.<ref>Rosh Chullin 7:33, Shulchan Aruch YD 100:1</ref>
# Therefore, the following are considered a biryah: bugs, non-kosher birds, Gid Hanashah, Even Min Hachay, and an egg with a chick inside. Whereas a prohibited plants, Nevelah, Terefa, or Chelev aren't a biryah.<ref>Shulchan Aruch YD 100:1, Shach 100:4</ref>
# An egg with a blood spot isn't considered a biryah.<ref>Shach 100:2</ref>
# If there is a doubt if a food is kosher but it is certainly a biryah it isn't nullified. However, if there is a doubt if something is a biryah it is nullified.<Ref>Taz 100:1 writes that since biryah is only rabbinic it is considered permitted if there is a doubt if it is biryah. If it is a doubt if it is kosher it is considered non-kosher based on safek deoritta lchumra and then afterwards that question isn't revisited when considering it a biryah that isn't nullified (safek deoritta sh'nitgalgel lehiyot derabbanan).</ref>
# If the biryah is broken or split it is nullified. Some say that it could be nullified even while one is chewing.<ref>Chazon Ish YD 14(1):6 s.v. vshiur writes that even if a biryah is broken while it is being chewed it is nullified. [http://www.hebrewbooks.org/pdfpager.aspx?req=21547&st=&pgnum=283 Mechzeh Eliyahu 1:89] questions this.</ref>
# If the biryah is broken or split it is nullified. Some say that it could be nullified even while one is chewing.<ref>Chazon Ish YD 14(1):6 s.v. vshiur writes that even if a biryah is broken while it is being chewed it is nullified. [http://www.hebrewbooks.org/pdfpager.aspx?req=21547&st=&pgnum=283 Mechzeh Eliyahu 1:89] questions this.</ref>
See [[Checking for Bugs]] for more practical aspects of  biryah.


===Dvar Shebeminyan===
===Dvar Shebeminyan===