Often times Muslim consumers tend to assume 'Kosher' is similar to 'Halal'. Although the slaughtering rituals of Jewish people resemble those of Muslims; kosher and halal are two different entities carrying a different meaning and spirit. Muslims, therefore, are provided with the following basic information about Kosher so they can exercise care in distinguishing halal from kosher.
Kashrut (in Hebrew) is the system of Jewish dietary laws. Kosher (kashur in Hebrew) means 'fit, or proper for use' according to Jewish law. Examples of kosher are: the meat of the 'fore quarter*' of the cattle slaughtered ritually, fruits, vegetables, all fish that have fins*, all wines*, all cheeses*, gelatin*.
The opposite of Kosher, as applied to food in Treif (in Yiddish), or trefah (in Hebrew) meaning 'not suitable for use', or 'forbidden'. Trefah literally means 'torn by a wild beast' (Exodus 22:30). Examples of Trefah are: blood, swine, rabbit*, all shell fish*, wild birds such as wild hen*, wild duck*, and the birds of prey.
(*) These food items exhibit a marked difference between kosher and Halal as well as trefah and haram. The differences are explained elsewhere in this section.
Caution to Muslim Consumers:
Halal is a comprehensive Islamic term encompassing not only the matters of food and drink, but all other matters of daily life. Islam being the final and perfect way of life for humanity, it supersedes all the previously revealed religions including Christianity and Judaism. The rituals in all matters were perfected by God (al-Quran 5:3)
According to Islamic Jurisprudence, no one except God can change forbidden (Haram) things into lawful (halal) for vice-versa. It is forbidden for people to change the lawful (Halal) things into unlawful (Haram), or vice-versa.
Halal is a unique Islamic concept and eating zabiha (Islamically slaughtered) meat is a distinguishing part of a Muslim's identity as expressed by Prophet Muhammad, peace and blessings be upon him.
Salient differences between kosher and halal are:
Islam prohibits all intoxicating alcohols, liquors, wines and drugs. kashrut regards all wines kosher. Hence food items and drinks showing the kosher symbol containing alcohol are not halal.
Gelatin is considered Kosher by many Jews regardless of its source of origin. If the gelatin is prepared from non-zabiha, Muslims consider it haram (prohibited). Hence foods items such as marshmallows, yogurt, etc., showing kosher symbols are not always halal.
Enzymes (irrespective of their sources even from non-kosher animals) in cheese making are considered mere secretion(pirsah b'almah) according to some kashrut organizations, hence all cheeses are considered kosher. Muslims look for the source of the enzyme in cheese making. If it is coming from the swine, it is considered haram(forbidden). Hence cheeses showing kosher symbols may not be halal.
Jews do not pronounce the name of God on each animal while slaughtering. They feel that uttering the name of God, out of context, is wasteful. Muslims on the other hand pronounce the name of Allah on all animals while slaughtering.
The salient differences between kosher and halal have been illustrated so that Muslim consumers can distinguish halal from kosher.
Muslims in non-Muslim countries should strive to follow the Islamic injunctions in their diet (as well as in every walk of life) and establish their own businesses and institutions to cater to the needs of the Muslim Ummah. By doing so, not only the identity of the Muslims will be preserved, but they will be recognized and respected for their beliefs and practices.
Differences within Kosher:
There are different sects within Judaism and there are several hundred Jewish Kosher authorities in the US who certify Kosher based on extremely liberal to extremely conservative rules. Therefore it is difficult to come up with one uniform opinion regarding Kosher practices. A symbols "k" for kosher is not governed by any authority. Any manufacturer can use it at will. A website guiding Jews about Kosher states "it may take a great deal of detective work to ascertain the standard that a particular rabbi is using." For this reason many Muslims when buying anything kosher look for "u" in a circle which are more conservative Kosher symbol.
Based on the book, Islamic Dietary Concepts And Practices by M.M. Hussaini