The classification of Kosher Cheese is largely affected by whether or not the cheese is made with rennet, an enzyme found in animals that causes milk to separate into curds and whey.
As with any food, all of the ingredients in the cheese as well as the equipment used during the manufacturing process must be kosher. However, a special rule in Jewish Law makes kosher certification of cheese a bit more challenging: cheese is only deemed kosher when made under continual, onsite rabbinic supervision.
However, hard cheeses require direct supervision by a Jew, as their was concern of rennet coming from non kasher sources being used to make the hard cheese. These types of cheeses are cheddar, permesian, or any cheese that typically appears as a solid block.
No. Most cheese in the US is not kosher unless specifically certified as such. Cheese-making is a bit tricky and there are several common processes that render cheese non-kosher according to most rabbis.
Prohibition on mixing dairy products with meat
Others associate it with the general prohibition on certain mixtures set out in the Torah, such as that of coupling animals from different species. Yet others see it as symbolic: the refusal to mix life (milk) and death (meat).
Jewish law requires that a mashgiach (Jewish supervisor) must oversee the process to ensure that only milk from kosher animals is used and that only kosher ingredients have been added. For this reason (and others), only feta cheese with a reliable kosher certification may be eaten.
Kosher pareve means food that is prepared without meat, milk or their derivatives. Examples of kosher foods are beef, chicken, salmon, tuna and milk. Dark chocolate is considered Kosher since it only contains cocoa beans, vanilla beans, and sugar.
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.
The cheese is not kosher unless a jew oversaw the addition of the rennet. Even if one knows the cheese maker buys only microbial rennet, or one has a contractual agreement with the cheese maker, by decree, it is not kosher unless someone actually watches the making of the cheese via the addition of the rennet.
Only eggs from kosher fowl are kosher. These include chicken, Cornish hens, ducks, geese, and turkey. The prohibition of eating blood applies even to the smallest drop of blood, and thus any blood spots found in an egg renders the egg non-kosher.
Broccoli, fresh Not Recommended It is very impractical and close to impossible for the average consumer to properly check fresh or frozen broccoli. It is therefore highly recommended that only product with a reliable hashgachah be used. Broccoli stems (no florets) may be used without checking after rinsing with water.
All dairy products, like milk, butter, yogurt, and cheese, must come from a kosher animal. All ingredients and equipment used to produce it have to be kosher, too. Pareve. This is the category for kosher foods that aren't meat or dairy.
Jews who observe the traditional dietary laws cannot mix meat and dairy, and so avoid them.
It has to come from the milk of kosher animals and cannot include natural rennet (keivas neveilah); Rennet is the enzyme that separates the milk's casein protein and fat and is a vital ingredient in traditional hard cheeses. Since it can't be used, most kosher cheese is acid set or made with microbial rennet.
This move from milk to cheese highlights the fact that the rabbis read Deuteronomy 14:21 and related texts as a general law: all milk, and all milk products, are forbidden to be cooked and/or consumed with all meat. Fowl may go up with cheese on the table, but it may not be eaten; the words of the House of Shammai.
Nevertheless, Islamic scholars have tended to regard dogs' saliva as impure; practically, this means anything licked by a dog necessitates washing. Many Islamic jurists allowed owning dogs for herding, farming, hunting, or protection, but prohibited ownership for reasons they regarded as "frivolous".
Their rules have also been applied to what types of processed food their adherents can buy. In general, kosher guidelines on food preparation are much more intensive than those for halal. These are especially strict in maintaining the distinction between milk and dairy.
Kosher slaughter is performed by a qualified butcher (known as a shochet) and involves continuous cutting of the esophagus and blood vessels using a special sharp chalef knife, with the length of the straight blade being at least twice the diameter of the animal's neck [11,12,13].
Ice creams, sherbets, frozen desserts, and ices contain a variety of emulsifiers, stabilizers, prepared mixes, and flavorings that require supervision. This is equally true of fruit ices and frozen ice pops which may contain a number of non-kosher stabilizers and flavorings.
The very clear answer is that no, ice cream is not prohibited at all. Orthodox Jews love ice cream as much as any other culture, and the sheer number of brands, flavors, and recipes grows by the year — almost every ice cream brand you'll see on shelves boast a kosher symbol.
Like all other highly processed foods, ice cream can contain many dozens of ingredients. So in order for ice cream to be accepted as kosher, it needs to be marked kosher by a reliable certifying agency. Note that dairy ice cream may not be served after a meat meal.
The matzah (a thin, cracker-like flatbread) that we eat on Passover is baked under controlled conditions that do not permit the thin bread to become leavened. The pasta we eat year round is made from wheat flour and is not baked under those conditions. For this reason we do not eat it on Passover.
Pasta is typically made from wheat, and even gluten-free varieties do not automatically get a kosher for Passover seal of approval. (This is actually a thing that appears on certified kosher for Passover packaged food.)
Before you worry about what you're going to eat this Thanksgiving, note that the debate about turkey is long over and turkey is accepted as kosher by almost all Jews. (I did find one exception in my research, but that seems to be limited to the descendants of one specific rabbi's family.)