Halakhic texts relating to this article
Torah: Deuteronomy 12:21, Deuteronomy 14:21, Numbers 11:22
Babylonian Talmud: Chullin
Mishneh Torah: Sefer Kodashim, Hilchot shechita
Shulchan Aruch: Yoreh De'ah 1:27
Other rabbinic codes: Sefer ha-Chinuch mitzvah 451

The Hebrew term shechita (anglicized: /ʃəxˈtɑː/; Hebrew: שחיטה, [ʃχiˈta]), also transliterated shehitah, shechitah, shehita, means the slaughtering of certain mammals and birds for food according to Jewish dietary laws (Deut. 12:21, Deut. 14:21, Num. 11:22).

Biblical Source

The Torah (Deut. 12:21) states that sheep and cattle should be slaughtered “as I have instructed you” but nowhere in the Five books of Moses are any of the practices of shechita described. Instead, they have been handed down in Judaism's traditional Oral Torah, and codified in halakha.


The animal must be of a permitted species. For mammals, this is restricted to ruminants which have split hooves.[1] For birds, although Biblically any species of bird not specifically excluded in Deuteronomy 14:12–18 would be permitted,[2] doubts as to the identity and scope of the species on the biblical list led to rabbinical law permitting only birds with a tradition of being permissible.[3]


Slaughtering poultry according to religious rules, Shalom Koboshvili, 1940

The procedure, which must be performed by a shochet (Hebrew: שוחט), involves severing the trachea, esophagus, carotid arteries, jugular veins and vagus nerve in a swift action using a special knife (see below) with an extremely sharp blade. This is done with the intention of causing a rapid drop in blood pressure in the brain and loss of consciousness, to render the animal insensitive to pain and to exsanguinate in a prompt and precise action.[4][5] The procedure may be performed with the animal either lying on its back (שחיטה מוונחת, shechita munachat) or standing (שחיטה מעומדת, shechita me'umedet).

To fulfill the basic law of shechita, the majority of both the trachea and esophagus (windpipe and food pipe) of a mammal, or the majority of either one of these in the case of birds, must be incised with a back and forth motion without violating one of the five major prohibited techniques (see below), or various other detailed rules.

Forbidden techniques

Breaching any of these five rules renders the animal nevelah; the animal is regarded in Jewish law as if it were carrion.

Temple Grandin has stated that she has "observed that if the rules (of the five forbidden techniques) are disobeyed the animal will struggle. If these rules are obeyed the animal has little reaction."[11]

The knife

Shechita slaughter of a chicken

The knife used for shechita is called a sakin (סכין), or alternatively a hallaf (חלף) by Ashkenazi Jews. By biblical law the knife may be made from anything not attached directly or indirectly to the ground and capable of being sharpened and polished to the necessary level of sharpness and smoothness required for shechita. The Minhag now is to use a metal knife.

The knife must be minimally slightly longer than the neck but preferably at least 2 times as long as the animal's neck is wide, but not so long that the weight of the knife is deemed excessive. If the knife is too large, it is assumed to cause Derasah, excessive pressing. Kosher knife makers sell knives of differing sizes depending on the animal. Shorter blades may technically be used depending on the number of strokes employed to slaughter the animal but the normative practice today is that shorter blades are not used. The knife must not have a point. It is feared a point may slip into the wound during slaughter and cause Haladah, covering, of the blade. The blade may also not be serrated, as serrations cause Iqqur, tearing.

The blade may not have imperfections in it. All blades are assumed by Jewish law to be imperfect, so the knife must be checked before each session. In the past the knife was checked through a variety of means. Today the common practice is for the shochet to run his fingernail up and down both sides of the blade and on the cutting edge to determine if he can feel any imperfections. He then uses a number of increasingly fine abrasive stones to sharpen and polish the blade until it is perfectly sharp and smooth. After the slaughter, the shochet must check the knife again in the same way to be certain the first inspection was properly done, and to ensure the blade was not damaged during shechita. If the blade is found to be damaged, the meat may not be eaten by Jews. If the blade falls or is lost before the second check is done, the first inspection is relied on and the meat is permitted.

In previous centuries the hallaf was made of forged steel, which was not reflective and was difficult to make both smooth and sharp. Shneur Zalman of Liadi, fearing that Sabbateans were scratching the knives in a way not detectable by normal people, introduced the Hasidic hallaf (Yiddish: hasidishe hallaf). It differs from the previously-used knife design because it is made of molten steel and polished to a mirror gloss in which scratches could be seen as well as felt. The new knife was controversial and one of the reasons for the 1772 excommunication of the Hasidim.[12]

Other rules

The animal may not be stunned prior to the procedure, as is common practice in non-kosher modern animal slaughter since the first half of the twentieth century.

It is forbidden to slaughter an animal and its young on the same day. An animal's "young" is defined as either its own offspring, or another animal that follows it around, even if of another species.

The animal's blood may not be collected in a bowl, a pit, or a body of water, as these resemble ancient forms of idol worship.

If the shochet accidentally slaughters with a knife dedicated to idol worship, he must remove an amount of meat equivalent to the value of the knife and destroy it. If he slaughtered with such a knife on purpose, the animal is forbidden as not kosher.

Post-procedure requirements


The carcass must be checked to see if the animal had any of a specific list of internal injuries that would have rendered the animal a treifah before the slaughter. These injuries were established by the Talmudic Rabbis as being likely to cause the animal to die within 12 months time. Today all mammals are inspected for lung adhesions and other disqualifying signs of the lungs and most kosher birds will have their intestines inspected for infections. Further inspection of other parts of the body may be performed depending on the stringency applied and also depending on if any signs of sickness were detected before slaughter or during the processing of the animal.


Glatt (Yiddish: גלאט), or Ḫalak (חלק) in Hebrew, means "smooth" in German and Yiddish. In the context of kosher meat, it refers to the smoothness, or lack of blemish, in the internal organs of the animal. In the case of an adhesion on a cow’s lungs specifically, there is debate between Ashkenazic customs and Sephardic customs. While there are certain areas of the lung where an adhesion is allowed, the debate revolves around adhesions which do not occur in these areas. Ashkenazic Jews rule that if the adhesion can be removed (there are various methods of removing the adhesion, and not all of them are acceptable even according to the Ashkenazic custom) and the lungs are still airtight (a process that is tested by filling the lungs with air and then submerging them in water and looking for escaping air) then the animal is still kosher, while Sephardic Jews rule that if there is any sort of adhesion on the forbidden areas of the lungs, then the animal is not kosher.


Porging[13][14] refers to the halakhic requirement to remove the carcass's veins, chelev (caul fat and suet)[15] and sinews.[16][17] The Torah prohibits the eating of certain fats, so they must be removed from the animal. These fats are typically known as chelev. There is also a biblical prohibition against eating the sciatic nerve (gid hanasheh), so that, too, is removed.[18]

The removal of the chelev and the gid hanasheh, called nikkur, is considered complicated and tedious, and hence labor-intensive, and even more specialized training is necessary to perform the act properly. While the small amounts of chelev in the front half of the animal are relatively easy to remove, the back half of the animal is far more complicated, and it is where the sciatic nerve is located.

In countries such as the United States, where there exists a large nonkosher meat market, the hindquarters of the animal (where many of these forbidden meats are located) is often sold to non-Jews, rather than trouble with the process. This tradition goes back for centuries[19] where local Muslims accept meat slaughtered by Jews as consumable; however, the custom was not universal throughout the Muslim world, and some Muslims (particularly on the Indian subcontinent) did not accept these hindquarters as halal. In Israel, on the other hand, specially trained men are hired to prepare the hindquarters for sale as kosher.

Blood removal

Because of the biblical prohibition of eating blood (Gen 9:4, Lev 17:10–14, Deut 12:23–24), all blood must be promptly removed from the carcass. All large arteries and veins are removed, as well as any bruised meat or coagulated blood. Then the meat is kashered, a process of soaking and salting the meat to draw out all the blood. If this procedure is not performed promptly, the blood is considered to have “set” in the meat, and the meat is no longer salvageable to eat except when prepared through broiling with appropriate drainage.[20]

Giving of the Gifts

A Biblical commandment states a shochet must give the foreleg, cheeks and maw to a Kohen even though he does not own the meat. Thus, it is desirable that the shochet refuse to perform the shechita unless the animal's owner expresses his agreement to give the gifts. Betei din (Rabbinical courts) have the authority to excommunicate a shochet who refuses to perform this commandment.

The Rishonim point out the Shochet cannot claim that, since the animal does not belong to him, he cannot give the gifts without the owner's consent. On the contrary, since the average shochet is reputed to be well versed and knowledgeable in the laws of Shechitah ("Dinnei Shechita"), Beith Din relies on him to withhold his shechita so long as the owner refuses to give the gifts:

The obligation of giving the gifts lay upon the Shochet to separate the parts due to the Kohanim. Apparently, the reasoning is that since the average Shochet is a "Friend", since he completed the prerequisite of understanding the (complex) laws of Shechita and Bedikah. It is assumed that he -as well- is knowledgeable in the details of the laws of giving the gifts, and will not put the Mitzvah aside. This, however, is not the case with the animal's owner, since the average owner is an Am ha-aretz not wholly knowledgeable in the laws of the gifts -and procrastinates in completing the Mitzvah
Shulchan Gavoah to Yoreh Deah 61:61

Animal welfare controversies

General description of controversy

The practices of handling, restraining, and unstunned slaughter has been criticized by, among others, animal welfare organizations such as Compassion in World Farming.[21] The UK Farm Animal Welfare Council said that the method by which Kosher and Halal meat is produced causes "significant pain and distress" to animals and should be banned.[22] According to FAWC it can take up to two minutes after the incision for cattle to become insensible.[23] Compassion in World Farming also supported the recommendation saying "We believe that the law must be changed to require all animals to be stunned before slaughter."[24][25] The UK government opted not to follow FAWC's recommendations after pressure from religious leaders.[26] The Federation of Veterinarians of Europe has issued a position paper on slaughter without prior stunning, calling it "unacceptable."[27]

Nick Cohen, writing for the New Statesman, discusses research papers collected by Compassion in World Farming which indicate that the animal suffers pain during the process.[28] In 2009, Craig Johnson and colleagues showed that calves that have not been stunned feel pain from the cut in their necks,[29] and they may take at least 10–30 seconds to lose consciousness.[30] This has led to prohibitions against unstunned slaughter in some countries.

Generally these arguments are rejected by the Jewish community, who say that the method is humane and that criticism is at least partially motivated by antisemitism. A Knesset committee announced (January, 2012) that it would call on European parliaments and the European Union to put a stop to attempts to outlaw kosher slaughter. "The pretext [for this legislation] is preventing cruelty to animals or animal rights – but there is sometimes an element of anti-Semitism and there is a hidden message that Jews are cruel to animals," said Committee Chair MK Danny Danon (Likud).[31]

Studies and experiments cited on orthodox Jewish website include one conducted in 1994 by Dr. Temple Grandin - an Associate Professor of Animal Science at Colorado and a study completed in 1992 by Dr. Flemming Bager, Head of the Danish Veterinary Laboratory, which showed that when the animals were slaughtered in a comfortable position they appeared to give no resistance and none of the animals attempted to pull away their head. The studies concluded that the animals had no pain and were not even aware that their throats were cut.[32]

Temple Grandin—a leading designer of animal handling systems—gives various research times for loss of consciousness via Kosher and Halal ritual slaughter and elaborates on what parts of the process she finds may or may not be cause for concern.[33][34] Grandin observes that the way animals are handled and restrained prior to slaughter likely has a greater impact on their welfare than whether or not they are stunned. For this reason, "under the leadership of Grandin, research into animal welfare during slaughter has shifted away from examination of different techniques of stunning to a focus on auditing the performance of actual slaughter plants operating under commercial conditions." [35]

Efforts to improve conditions in shechita slaughterhouses

Temple Grandin is opposed to shackling and hoisting as a method of handling animals and wrote, on visiting a shechita slaughterhouse, "I will never forget having nightmares after visiting the now defunct Spencer Foods plant in Spencer, Iowa fifteen years ago. Employees wearing football helmets attached a nose tong to the nose of a writhing beast suspended by a chain wrapped around one back leg. Each terrified animal was forced with an electric prod to run into a small stall which had a slick floor on a forty-five degree angle. This caused the animal to slip and fall so that workers could attach the chain to its rear leg [in order to raise it into the air]. As I watched this nightmare, I thought, 'This should not be happening in a civilized society.' In my diary I wrote, 'If hell exists, I am in it.' I vowed that I would replace the plant from hell with a kinder and gentler system."[36]

Efforts are made to improve the techniques used in slaughterhouses. Temple Grandin has worked closely with Jewish slaughterers to design handling systems for cattle, and has said: "When the cut is done correctly, the animal appears not to feel it. From an animal welfare standpoint, the major concern during ritual slaughter are the stressful and cruel methods of restraint (holding) that are used in some plants."[37] When shackling and hoisting is used, it is recommended [38] that cattle not be hoisted clear of the floor until they have had time to bleed out.

Agriprocessors controversy

The prohibition of stunning and the treatment of the slaughtered animal expressed in shechita law limits the extent to which Jewish slaughterhouses can industrialize their procedures. The most industrialized attempt at a kosher slaughterhouse, Agriprocessors of Postville, Iowa, became the center of controversy in 2004, after People for the Ethical Treatment of Animals released a gruesome undercover video of cattle struggling to their feet with their tracheas and esophagi ripped out after shechita. Some of the cattle actually got up and stood for a minute or so after being dumped from the rotating pen.[39][40][41] Dr. Temple Grandin, told Mason City, Iowa's Globe Gazette, "I thought it was the most disgusting thing I'd ever seen. I couldn't believe it. I've been in at least 30 other kosher slaughter plants, and I had never ever seen that kind of procedure done before. … I've seen kosher slaughter really done right, so the problem here is not kosher slaughter. The problem here is a plant that is doing everything wrong they can do wrong."[42] While Agriprocessors has been criticized by both secular and Jewish organizations for both its human and animal rights violations, the Jewish Orthodox Union (OU) made note to point out that the kashrut of a product is not contingent upon "the conditions in which it is produced. The OU's condonation of Agriprocessors as a possibly inhumane, yet appropriately glatt kosher company has led to discussion as to whether or not industrialized agriculture has undermined the place of halakha (Jewish law) in shechita as well as whether or not halakha has any place at all in Jewish ritual slaughter.[43]

Jonathan Safran Foer, a Jewish vegetarian, narrated the short documentary film If This Is Kosher..., which records what he considers abuses within the kosher meat industry.[44] Forums surrounding the ethical treatment of workers and animals in kosher slaughterhouses has inspired a revival of the small-scale, kosher-certified farms and slaughterhouses, which are gradually appearing throughout the United States.[45]

See also


  1. Shulchan Aruch, Yoreh De'ah 79
  2. Zivotofsky, Ari Z. (2011). "Kashrut of Birds – The Biblical Story". Is Turkey Kosher?. Scharf Associates. Retrieved 3 January 2012.
  3. Zivotofsky, Ari Z. (2011). "Kashrut of Birds – The Need for a Mesorah". Is Turkey Kosher?. Scharf Associates. Retrieved 3 January 2012.
  4. What is Shechita?
  5. S. D. Rosen. Physiological Insights into Shechita. The Veterinary Record June 12, 2004
  6. Popper, Nathaniel. "Widespread Slaughter Method Scrutinized for Alleged Cruelty". The Forward, 02/13/2008. Retrieved 27 April 2012.
  7. "New York - The Shechita Wars". VosIzNeias. Retrieved 2015-09-24.
  8. "The rules of Shechita for performing a proper cut during kosher slaughter (Rabbi Chanoch Kesselman, Temple Grandin, meat scientist)". Retrieved 2014-01-15.
  9. "Article: ''Shehitah'' Jewish Encyclopedia 1906". Retrieved 2014-01-15.
  10. Shulḥan 'Arukh, Yoreh De'ah, 1-28;
  11. "The rules of Shechita for performing a proper cut during kosher slaughter". Retrieved 2015-09-24.
  12. Vertheim, Aharon (1992). Law and Custom in Hasidism. KTAV Publishing House, Inc. pp. 302–. ISBN 978-0-88125-401-3.
  13. porge is an English word: the hebrew is nikkur or niqqur (where the q represents the letter quph) and the Yiddish is treibering This is done by a (mennaker Yiddish:)
  14. "Porging". Jewish Encyclopedia. Retrieved 2014-01-15.
  15. Mishneh Torah Kedushah, Forbidden Foods 8:1
  16. Mishneh Torah Kedushah, Forbidden Foods 6:1
  17. "Porging". Jewish Encyclopedia 1905. Retrieved 2014-01-15.
  18. Eisenstein, Judah David (19 June 1901). "PORGING". Jewish Encyclopedia. 10. New York: Funk & Wagnalls. p. 132. LCCN 16014703. Retrieved 3 January 2012.
  19. What's the Truth about Nikkur Achoraim?, 2007
  20. "Wikihow. How to Kasher Meat". Retrieved 2014-01-15.
  21. "Compassion in World Farming: Unstunned Hallal and Kosher Meat (with link to collected reports)". Retrieved 2014-01-15.
  22. Hickman, Martin (22 June 2009). "End 'cruel' religious slaughter, say scientists". The Independent. London.
  23. "Farm Animal Welfare Council: Report on the Welfare of Farmed Animals at Slaughter or Killing Part 1: Red Meat Animals" (PDF). Retrieved 2014-01-15.
  24. "BBC: Should Halal and Kosher meat be banned?". BBC News. 16 June 2003.
  25. "BBC: Halal and Kosher slaughter 'must end'". BBC News. 10 June 2003.
  26. Kirby, Terry (2 April 2004). "Government backs down on religious slaughter ban''The Independent''". The Independent. London.
  27. ["Slaughter of Animals Without Prior Stunning" (PDF). Federation of Veterinarians of Europe.
  28. Cohen, Nick (5 July 2004). "God's own chosen meat". New Statesman. 133 (4695): 22–23. ISSN 1364-7431. Retrieved 3 January 2012. Possible reasons for the suffering are laid out in various research papers that Compassion in World Farming has collected. After the throat is cut, large clots can form at the severed ends of the carotid arteries, leading to occlusion of the wound (or "ballooning" as it is known in the slaughtering trade). Occlusions slow blood loss from the carotids and delay the decline in blood pressure that prevents the suffering brain from blacking out. In one group of calves, 62.5 per cent suffered from ballooning. Even if the slaughterman is a master of his craft and the cut to the neck is clean, blood is carried to the brain by vertebral arteries, and it keeps cattle conscious of their pain.
  29. TJ Gibson; CB Johnson; JC Murrell; CM Hulls; SL Mitchinson; KJ Stafford; AC Johnstone; DJ Mellor (13 Feb 2009). "Electroencephalographic responses of halothane-anaesthetised calves to slaughter by ventral-neck incision without prior stunning". New Zealand Veterinary Journal. 57 (2): 77–83. doi:10.1080/00480169.2009.36882.
  30. Andy Coghlan (13 Oct 2009). "Animals feel the pain of religious slaughter". New Scientist. Retrieved 21 January 2015.
  31. Harman, Danna (2012-01-10). "Israeli Knesset committee seeks end to European bans on kosher slaughter ''Ha'aretz'' Knesset Committee on Immigration, Absorption and Diaspora Affairs chair says attempts to outlaw 'Shechita' contain 'anti-Semitic' elements. ''Ha'aretz'' Johnathan Lis January 10, 2012". Retrieved 2014-01-15.
  32. "Is Shechita Humane?". Dr. Temple Grandin, Dr. Flemming Bager -. Retrieved 2014-04-22.
  33. Grandin, Temple (August 2011). "Welfare During Slaughter without stunning (Kosher or Halal) differences between Sheep and Cattle". Retrieved 3 January 2012.
  34. "Temple Grandin ''Maximising Animal Welfare in Kosher Slaughter". Retrieved 2014-01-15.
  35. Rushen, Jeffrey; de Passile, Anne Marie; von Keyserlingk, Marina A.G.; et al., eds. (2008). The Welfare of Cattle. Dordrecht, The Netherlands: Springer. p. 140. ISBN 9781402065583.
  36. Temple Grandin Thinking in Pictures. My Life with Autism
  37. "Recommended Ritual Slaughter Practices".
  38. Handbook of Meat and Meat Processing, Second Edition. Y. H. Hui (editor). Retrieved 2014-01-15.
  39. The New York Times Videotapes Show Grisly Scenes at Kosher Slaughterhouse By DONALD G. McNEIL Jr. November 30, 2004
  40. "PETA Reveals Extreme Cruelty at Kosher Slaughterhouses |".
  41. Aaron Gross: When Kosher Isn't Kosher. Tikkun Magazine, March/April 2005, Vol. 20, No. 2.
  42. "PETA Reveals Extreme Cruelty at Kosher Slaughterhouses". Retrieved 2014-01-15.
  43. Fishkoff, Sue (2010). Kosher Nation. New York: Schocken.
  44. Foer, Jonathan Safran. "If This Is Kosher…".
  45. Romanoff, Zan. "Kosher – Farm to table | Food". Jewish Journal. Retrieved 2014-01-15.

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