Kashrut or Kashruth, Kashrus (Hebrew: כַּשְרוּת }}) or "keeping kosher" (Hebrew: כָּשֵר ) is the name of the Jewish dietary laws. Food in accord with halakha (Jewish law) is termed kosher in English, from the Hebrew term kasher, meaning "fit" (in this context, fit for consumption by observant Jews).
Food not in accord with Jewish law is termed treifah or tareif (טְרֵפָה rh}}) ("torn"); the term originally referred to animals (from a kosher species such as cattle or sheep) which had been either incorrectly slaughtered or mortally wounded by wild beasts and therefore were not fit for human consumption. Among Sephardim, it typically only refers to meat that is not kosher.
The basic laws of kashrut are in the Torah's Book of Leviticus, with their details set down in the oral law (the Mishnah and the Talmud) and codified by the Shulkhan Arukh and later rabbinical authorities. Many varied reasons have been offered for these laws, ranging from philosophical and ritualistic, to practical and hygenic; see below for examples and explanations.
The word kosher has been borrowed by many languages. In English as slang, it generally means legitimate, acceptable, permissible, genuine or authentic.
Foods are kosher when they meet all criteria that Jewish law applies to food. Invalidating characteristics may range from the presence of a mixture of meat and milk, to the use of produce from Israel that has not been tithed properly, or even the use of cooking utensils which had previously been used for non-kosher food.
Store-bought foods can be identified as kosher by the presence of a hechsher (plural hechsherim), a graphical symbol that indicates that the food has been certified as kosher by a rabbinical authority. (This might be an individual rabbi, but is more often a rabbinic organization.) The most common symbol in the United States is the "OU", a U inside a circle, standing for the Union of Orthodox Congregations. Many rabbis and organizations, however, have their own certification mark, and the other symbols are too numerous to list.
The hechsherim of certain authorities are sometimes considered invalid by certain other authorities. A solitary K is sometimes used as a symbol for kashrut, but as this symbol cannot be trademarked (the method by which other symbols are protected from misuse), it does not indicate anything other than the fact that the company producing the food considers it to be kosher.
It is not sufficient to read the list of ingredients on a product label in order to determine a food's kosher status, as many things are not included in this list, such as pan lubricants and release agents (which may be derived from lard), flavorings (even "natural flavorings" may be derived from non-kosher substances) and others. It can, however, identify obviously unkosher substances present in food.
Producers of food items and food additives can contact Jewish authorities to have their product deemed kosher. A committee will visit their facilities to inspect production methods and contents of the product and issue a certificate if everything is in order. In many product classes, constant supervision is required.
For various reasons, such as changes in manufacturing processes, products known to be kosher on one day might not be kosher tomorrow; a change in lubricating oil to one containing tallow, for instance. Often, these changes will be coordinated with the supervising rabbi or organization, to ensure that new packaging, which will not suggest any hechsher or kashrut, will be used for the new formulation. But in some cases, the supply of preprinted labels with the hechsher may still find its way onto the now non-kosher product; for such reasons, there is an active "grapevine" among the Jewish community, as well as newspapers and periodicals, identifying which products are now questionable, as well as products which have become kosher but whose labels have yet to carry the hechsher.
In Jewish philosophy it is recognized that many of the 613 mitzvot cannot be explained rationally. They are categorized as chukim, comprising such laws as the Red Heifer (Numbers 19). There are three basic points of view regarding these laws:
The latter view, however, has been rejected by most classical and modern Jewish authorities, and by modern biblical scholars. For example, Maimonides holds that all the laws given by God have a reason, that we are permitted to seek out what these reasons may be, and that we should feel comfortable in knowing that rational reasons exist for all of God's laws in the Torah, even if we are not sure of what some of these reasons are. For Maimonides, the idea that God gave laws without any reason is anathema. Mishneh Torah Korbanot, Temurah 4:13 (in eds. Frankel; "Rambam L'Am")
Others argue that laws in the category of chukim were given because of the well-known Jewish tendency to rationalize and probe - a sort of reminder that, while the Universe is generally explainable, one cannot possibly understand everything.
According to the Biblical book of Leviticus, the purpose of the laws is related to ritual purity and holiness. Indeed, the Hebrew word for "holiness" is etymologically related to the Hebrew word for "distinction" or "separation." This idea is generally accepted by most Jews today, and by many modern biblical scholars. Cultural anthropologist Mary Douglas has written an important work on just how the Israelites may have used the idea of distinction as a way to create holiness. Her seminal work, Purity and Danger (1966), is still studied today. One theory widely accepted today is that the laws serve as a distinction between the Israelites and the non-Israelite nations of the world. Gordon Wenham writes: "The laws reminded Israel what sort of behaviour was expected of her, that she had been chosen to be holy in an unclean world."
Similarly, the practice of Kashrut serves as a daily exercise in self-discipline and self-control, strengthening the practitioner's ability to choose other difficult paths. The ability to rationally curb one's most basic appetites can be seen as the prerequisite to living in a civilized society. Also, Jews consider the aspects of Kosher slaughter which emphasize and incorporate the need to avoid unnecessary suffering of the animal a reminder to the believer that having the power of life and death or to cause suffering, even to a farm animal born and bred to be eaten, is a serious responsibility rather than a pleasure to be sought after; and that to actually indulge in pleasure in the power to cause suffering, even in so common a practice as hunting, is to damage our own moral sensibilities.
The prohibition against eating the fruits of a tree for the first three years also represents a capacity for self-discipline and self-denial, as well as a lengthy period of appreciation for the bounty of God, prior to losing oneself in its enjoyment. Similarly, the requirement to tithe one's harvest, aside from the social justice aspect, serves as a reminder that this material wealth is not purely the result of one's own efforts, but represents a gift from God; and as such, to share the gift with one's fellows does not represent a real loss to anyone, even oneself.
This hypothesis has long since been rejected by most Jewish and Christian scholars. Modern biblical criticism also has found nothing to support this hypothesis, although the concept of the pig as a particularly 'unclean' animal persists among Jews.
Although the symbolic explanation for kashrut has been largely rejected, a number of authorities maintain that the laws are intended to promote ethical and moral behaviour. A recent authority who has reexamined the symbolic/ethical meaning of kashrut is Rabbi Samson Raphael Hirsch (Germany, 19th century).
To some degree, the prohibition on combining milk with meat represents a symbolic separation between death, represented by the flesh of a dead animal, and life, represented by the milk required to sustain a newborn creature. The often-quoted humane component to this law is also of symbolic value; the Torah prohibits 'seething the kid (goat, sheep, calf) in its mother's milk', a practice cruel only in concept, which would not be understood as cruelty by either the kid or its mother and would not cause them additional suffering; but which could still potentially inflame a human's taste for ultimate power over those creatures who are weaker. Thus, Kashrut prohibits the practice itself, even if the resulting mixture is to be discarded.
Similarly, the prohibition against consuming carnivorous mammals and birds, 'loathsome crawling creatures', and scavengers, as well as the prohibition against consuming sick or diseased animals, would seem to rely, at least in part, on their perceived symbolic character.
It was believed by some people that kosher animals were healthier to eat than non-kosher animals. It was also noted that the laws of purity (Leviticus 11–15) not only describe the difference between clean and unclean animals, but also describe other phenomena that appear to be related to health. For instance, glatt, the requirement that lungs be checked to be free of adhesions, would prevent consumption of animals who had been infected with tuberculosis; similarly, the ban on slaughtering of an unconscious animal would eliminate many sick and possibly infectious animals from being consumed. Such a rationale seems reasonable when considering the laws prohibiting the consumption of carrion birds or birds of prey (which are advantageous scavengers), as they may carry disease from the carrion they consume; shellfish, which as filter feeders can accumulate harmful parasites or toxins; or pork, which can harbor trichinosis if not properly cooked. Thus, it was natural for many to assume that all the laws of kashrut were merely hygienic in intent and origin. One of the rabbinical authorities that mention the hygiene hypothesis is Maimonides in his Guide for the Perplexed.
For a number of reasons, however, this idea has fallen out of favor among biblical scholars, and has never been accepted by the majority of Jews. Fruits and vegetables may be eaten without prohibition even though there are many poisonous herbs, seeds, berries and fruits. Additionally, this hypothesis does not explain other parts of the Jewish dietary laws; for instance forbidding the consumption of fish without true scales, such as sharks and swordfish, fruit from trees which are less than four years old, or residual blood in meat.
In 1953 Dr. David I. Macht, a Johns Hopkins researcher, performed experiments on many different kinds of animals and fish, and concluded that the concentration of zoological toxins of the "_Leviticus_11:3.E2.80.9311:8" animals was higher than that of the "clean" animals, and that the correlation with the description in Leviticus was 100%.(Macht D, (1953). "An Experimental Pharmacological Appreciation of Levitcus XI and Deuteronomy XIV". Bull Hist Med 27:444-450). In addition, Dr. Macht's research indicated harmful physiological effects of mixtures of meat and milk, and ritually slaughtered meat appeared to be lower in toxins than meat from other sources (see: David I. Macht, Medical Leaves 1940; 3:174-184 ). The conclusions of the paper published in Johns Hopkins Bulletin of the History of Medicine was challenged in a paper by biologists written at the request of a Seventh-day Adventist Church publication [http://members.dslextreme.com/users/hollymick/web/ministry-1954-March-p37.htm Ministry Magazine, March 1953, p37-38 "This Question of Unclean Meats" Responses to Macht's study from heads of biology depts..
It is also possible that there are multiple reasons for the laws of Kashrut, with each law serving one or more than one purpose.
Those who oppose the above rulings argue that kashrut is simply a set of standards for food preparation, nothing more; there is no difference between labelling something "low sodium", "high-fiber", "pasteurized" "kosher", "calcium-enriched", or "contains no cholesterol".
Many Jews who do not meet the complete requirements of Kashrut nevertheless maintain some subset of the laws; for instance, abstaining from pork or shellfish. Many Jews will likewise avoid drinking milk with a meat dish. Similarly, many keep a degree of Kashrut at home while having no problems eating in a non-kosher restaurant.
In English and Hebrew, the term kosher is frequently used in a metaphorical sense to mean "fitting" or "correct", which is its conventional meaning in Hebrew. It is also part of some common product names. For example, "kosher salt" (technically "kashering salt") is a form of salt which has irregularly-shaped crystals, making it particularly suitable for preparing meat in accordance with Kashrut law because the increased surface area of the crystals absorbs blood more effectively. Likewise, a "kosher pickle" is a particular style of pickle that originated in Eastern European kosher delicatessens with a distinctive flavor.
Consumer-protection laws in many jurisdictions prohibit use of the term "kosher" unless it is shown to conform to Jewish dietary laws, however this will be defined differently for different jurisdictions and situations. For example, in some places the law may require that a rabbi certify the kashrut, and in others it is sufficient that the manufacturer believes the product to be kosher. Most packaged food products that are labelled "kosher" will therefore have some level of certification of compliance with the laws of kashrut, though individuals must determine if that level is adequate for themselves.
A new movement in Israel Chicago Jewish Star, September 30, 2005, front page. demands that an establishment - a grocery store or restaurant - will only be considered fully kosher if its employees are paid a decent wage and treated fairly, and there is access for the handicapped. This will require a second certificate of kashrut in addition to the standard one.
Most vegetables, particularly leafy vegetables (lettuce, cabbage, parsley, dill, etc.), must be thoroughly checked for insect infestation. The consumption of insects involves five violations of Torah law, so according to Jewish Law it is a greater sin than the consumption of pork. The proper procedure for inspecting and cleaning will vary by species, growing conditions, and the views of any particular rabbi.
The situation is not always reversible, however; although pareve food can contain neither meat nor dairy, that label on a product cannot be always used by vegetarians as a reliable indication, since Kashrut considers fish to be pareve. However, in practice it is rare to find fish products in pareve foods; moreover, because of potential issues of mixing meat and fish (see Fish and seafood) many Kashrut supervising authorities specifically indicate the presence of fish products when they are found in pareve foods.
People who have specific dietary needs should be aware that their standards for certain concepts may differ from the halachic standards for similar concepts.
Genesis 1:29 states "And God said: Behold, I have given you every herb yielding seed which is upon the face of all the earth, and every tree that has seed-yielding fruit - to you it shall be for food." According to many classical Jewish Bible commentators, this means that God's original plan was for mankind to be vegetarian, and that God later gave permission for man to eat meat because of man's weak nature. However, others argue that people may eat animals because God gave Eve and Adam dominion over them. Some prominent rabbis have been vegetarian, among them former Chief Rabbi of Israel Shlomo Goren and former Chief Rabbi of Haifa She'ar-Yashuv Cohen. Abraham Isaac Kook, the first Chief Rabbi of pre-state Israel, supported vegetarianism, and is often described as a vegetarian, though he ate a small amount of chicken every Sabbath.Former Chief Rabbi of Ireland, David Rosen, considered "the consumption of meat as halachically unacceptable", primarily due to the cruelty of modern factory farming methods of rearing livestock, and made a strong case for Jewish vegetarianism [http://www.jewishveg.com. Several talmudic statements support this opinion.
Some Orthodox authorities have ruled that it is forbidden for an individual to become a vegetarian if they do so because they believe in animal rights; however, they have also ruled that vegetarianism is allowed for pragmatic reasons (if kosher meat is expensive or hard to come by in their area), health concerns, or for reasons of personal taste (if someone finds meat unpalatable). Some feel that the mass-slaughter of animals in this industrial age is not subject to the same scrutiny as it was in olden days, with the result that the likelihood of proper shechita is very low; some Jews abstain from meat for this reason. Some believe that Halakha encourages the eating of meat at the Sabbath and Festival meals, and some Orthodox Jews who are otherwise vegetarian will nevertheless consume meat at these meals.
Kabbalistic teachings, from Talmudic and Medieval sources, restrict the consumption of meat to only those who are spiritually highly developed. The soul of an animal is more complex than that of a vegetable, so it requires a correspondingly complex soul to consume it. Conversely, others suggest that all Jews except the spiritually highly developed can eat meat: the consumption of meat has often been seen as luxuriously indulgent, and therefore the highly spiritual would abstain from it as a form of self-denial.
While Kashrut law requires consideration of animal welfare, it is sometimes not followed in pratice, even under supposedly strict rabbinical supervision. In one of the most egregious cases, PETA investigation has revealed that “AgriProcessors, the world's largest glatt kosher slaughterhouse, has been ignoring the Jewish commitment to compassion and federal law by mutilating fully conscious animals, shocking them in the face, and slaughtering them in a way that has allowed many to stand and attempt to flee, even minutes after their throats had been slit.” *. Amazingly, this was done under the supervision of the Orthodox Union, supposedly an authority on strict adherence to kashrut laws.
Some animal rights groups object to some forms of kosher slaughter, claiming it can take several minutes for the animal to die and can often cause immense suffering. Jewish groups point to studies showing that the technique is no more painful than conventional techniques, and in most cases quicker and less painful; the emphasis on flawless procedure and tools contrasts with the often sloppy production line methodology of the slaughterhouse resulting in failure to stun the animal, as often described by animal rights advocates in other contexts. However, the conclusions of these studies are sometimes rejected by animal rights advocates. In addition, there are campaigns to have the practice of ritualistic slaughter globally banned.
In some ways, modern slaughtering practices and kashrut practices clash, although both may have good intentions with respect to hygiene and animal welfare; for instance, kashrut prohibits slaughter of an unconscious animal, for reasons of avoiding consumption of a diseased animal as well as the possibility of inhumane means of anesthesia, and relies on the skill of the shochet and the sharpness of the knife to slit the jugular as painlessly as possible. On the other hand, for reasons of hygiene, modern slaughterhouse regulations prohibit the carcass of an animal from falling into the blood of another, so that animals are often suspended by a leg before being slaughtered; they would normally be stunned by a blow to the head to prevent suffering in this process, but the prohibition of slaughter of an unconscious animal prevents this for kosher slaughter. Of course, other methods of supporting the carcass of the animal after it is slaughtered are available, but since they are more expensive and not routinely used for non-kosher slaughter, slaughterhouses are reluctant to adopt them, and when they do often greatly raise the price of the meat to compensate for the non-standard technique.
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