Kosher beef is beef that has been raised, slaughtered, inspected, and prepared according to Jewish dietary law (kashrut). The animal itself must meet specific biological criteria, the slaughter must be performed by a trained professional using a precise method, and the meat must go through a multi-step process to remove blood before it can be sold or eaten. Each stage has strict requirements, and failure at any single point means the meat cannot be labeled kosher.
Which Cattle Qualify as Kosher
Not every animal can produce kosher beef. Jewish dietary law requires that an animal both chew its cud (be a ruminant) and have split or cloven hooves. Cattle meet both criteria, so all breeds of domesticated cows and bulls are eligible. Sheep, goats, deer, and antelope also qualify. Pigs, by contrast, have cloven hooves but do not chew cud, which is why pork is never kosher.
Meeting these biological requirements is just the starting point. An otherwise eligible animal can still be disqualified later in the process if the slaughter, inspection, or preparation isn’t done correctly.
How Kosher Slaughter Works
Kosher slaughter, called shechita, is performed by a specially trained individual known as a shochet. The shochet uses a single continuous cut across the animal’s throat with a dedicated knife. This knife must be razor-sharp, completely free of nicks, and smooth on both sides. For cattle, the blade is typically about sixteen inches long, roughly twice the width of the animal’s neck. Before every slaughter, the shochet checks the blade by running a fingernail along both edges. Even a tiny imperfection in the blade disqualifies the entire animal.
The knife cannot have a pointed tip. Instead, it ends at a right angle to prevent accidental stabbing or tearing. The cut must sever the major structures of the throat in one swift motion without pausing, pressing downward, or burrowing the blade. If any of these errors occur, the meat is not kosher.
The Lung Inspection and “Glatt” Status
After slaughter, a trained inspector examines the animal’s internal organs, with special attention to the lungs. Adhesions, which are fibrous tissues that sometimes attach to the lung wall, are common in cattle. These adhesions can indicate a puncture underneath, and any animal with a punctured lung is disqualified entirely.
The inspector carefully peels away any adhesions and then inflates the lung with air while submerging it in water. If air bubbles appear, the lung has a hole and the animal is rejected. This is where the distinction between “kosher” and “glatt kosher” comes in. If the lungs had no adhesions at all, the animal qualifies as Beis Yosef Glatt, the strictest standard. If adhesions were present but exceptionally thin (like a sewing thread), peeled off easily, left no hole, and the lung passed the water test, the animal is considered glatt kosher. If the adhesions were thicker but still didn’t hide a puncture, the animal is kosher but not glatt. Today, most kosher beef sold in the United States is marketed as glatt kosher, and many kosher consumers specifically look for this designation.
Forbidden Parts of the Animal
Even after a cow passes inspection, not all of its meat is automatically kosher. Two categories of tissue are biblically forbidden: the sciatic nerve (running through the hindquarters) and certain internal fats called chelev. Removing these requires a painstaking process known as nikkur, or deveining. A skilled practitioner must trace and extract the sciatic nerve and its surrounding blood vessels, along with the prohibited fat deposits, without leaving any behind.
This is why kosher beef in most Western countries comes almost exclusively from the front half of the animal. Cuts like ribeye, brisket, chuck, and shoulder are straightforward to prepare. Hindquarter cuts like filet mignon, sirloin, and flank steak sit right alongside the sciatic nerve and chelev, making nikkur extremely labor-intensive. In the United States and much of Europe, kosher producers typically sell the hindquarters to the non-kosher market rather than invest in the complex deveining process. In Israel and some other countries, trained specialists do perform nikkur on hindquarters, making those cuts available as kosher.
Salting and Soaking to Remove Blood
Jewish dietary law prohibits consuming blood, so all kosher beef goes through a process called melichah (salting) before it reaches the consumer. The meat is first soaked in cold water for thirty minutes, then rinsed. Coarse salt, the kind often labeled “kosher salt” in grocery stores, is spread liberally over every surface. The salt draws out residual blood over the course of one hour. Afterward, the meat is rinsed thoroughly three times in cold water to remove all the salt.
The coarse grain size matters. Fine table salt would dissolve into the meat instead of sitting on the surface and pulling blood out, and it would be nearly impossible to rinse away completely. The salting is done on a grooved or perforated surface so blood can drain away from the meat rather than pool around it. This entire process is typically completed at the processing facility, so most kosher beef you buy has already been salted and rinsed.
Research published in the journal Foods found that this koshering process measurably changes the meat’s physical properties. Kosher beef retained more moisture during cooking, showing lower forced drip and thermal drip values compared to conventionally processed beef. The salting and rinsing also influenced the meat’s pH over 24 to 48 hours post-slaughter, which contributed to better water-holding capacity. In terms of tenderness, kosher-slaughtered cattle showed lower shear force values than conventionally stunned animals, meaning the meat required less force to cut through.
Supervision and Certification
Every stage of kosher beef production is overseen by a mashgiach, a trained supervisor employed by a kosher certification agency. The mashgiach verifies that the shochet’s knife passes inspection, that the lung examination is conducted properly, that forbidden parts are removed, and that the salting process follows all requirements. At large-scale operations, multiple mashgichim may work simultaneously to ensure nothing is overlooked.
The finished product carries a hechsher, a certification symbol, on its packaging. The most widely recognized symbol in the United States is the OU (Orthodox Union), but dozens of certification agencies exist. On beef products, you’ll typically see a symbol marked “OU-Meat” or “OU-Glatt” to indicate the product is a kosher meat item. Other major certifying bodies include OK Kosher, Star-K, and Kof-K, each with their own symbols. These symbols tell the consumer not just that the product is kosher but also its category: meat, dairy, or pareve (neither meat nor dairy), since kosher law prohibits mixing meat and dairy.
Why Kosher Beef Costs More
Kosher beef typically carries a higher price tag than conventional beef, and the reasons are built into every step of the process. The shochet and mashgichim are specialized professionals whose salaries add to production costs. The lung inspection rejects a significant percentage of animals that would be perfectly acceptable in conventional processing. Selling only the front half of the animal means fewer retail cuts per cow. And the salting and soaking process adds time and labor at the plant. All of these factors compound, which is why kosher beef often costs 20 to 50 percent more than comparable conventional cuts at the retail level.