What exactely means "koscher"?

Answer 1

"Kosher," meaning "fit" or "proper" in Hebrew, refers to Jewish dietary laws, originating in the Old Testament, that govern the selection and preparation of food. The basic kosher laws are that certain non-kosher foods, principally pork and shellfish, may not be eaten, and that milk products and meat dishes may never be eaten together.-

Answer 2

"Kosher" translates to "clean" or "fit"
The word means that a food if clean or fit for eating as per the dietary guidelines in the Tanakh (Jewish Bible). This means that he food must be of a clean animal (animals that chew the cud AND have cloven hooves, like cows, deer, goats, sheep) and that the food was slaughtered in accordance with the laws in the Bible. This means that no cruelty was done to the animal and that it was killed so quickly as to not feel pain, and that all the blood was drained from the animal. This process has to be done by a certified "shochet" (certified Jewish rabbi/butcher). Then, only certain parts of the animal are kosher. The sciatic nerve (the nerve that has been linked to mad cow disease) is not kosher, so in the Diaspora (everywhere in the world besides Israel) the back half of the animal is simply cut off and either throw away or sold to non-kosher butchers. In Israel, they will go through the painstaking process of cutting out the nerve. Birds of prey are not kosher, as are any scavenger animals (vultures, shellfish, pigs) nor are insects or rodents. We must also not mix meat and dairy when eating, nor the utensils that govern this (we must have two sets of dishes, one for dairy and one for meat). All the food we buy must come from a certified kosher butcher or, if they are non-meat products, must have a kosher symbol on the packaging. The most common one is the U, for Orthodox Union.

Long story short, kosher means that it adheres to the guidelines (kashrut laws) set out in the Bible.

Answer 3

Kosher food is food prepared in accordance with Jewish dietary guidelines or "Kahrut" which means "proper." Any food can be called kosher food if it follows the proper guidelines. Conversely, foods typically labeled as "Jewish" aren't necessarily kosher. The word "kosher" isn't used for only food, however. Kosher basically means something follows all the Jewish legal guidelines.
jus as halaal means sumthin which follows all the islamic guidelines

Answer 4

Koscher is food that follows the Biblical food laws. Generaly speaking, it refers to what Jews consider food fit to eat. Foods that have a Koscher lable on them have been checked and certified by a rabbi to make sure that there is nothing in the food that would break the Koscher food law.

Answer 5

I'm not Jewish, but had my Jewish friends explain it to me.

Kosher foods do not contain any food banned by the bible (shellfish, pork).

They are made in a kitchen that has been blessed (and certified) by a Rabbi.

There are more requirements, but those two are the main ones.