After a cow is slaughtered, its head is removed, inspected, and then separated into surprisingly valuable parts. Almost nothing goes to waste. The tongue, cheek meat, and other tissues are sold as food, while bones and leftover material are rendered into industrial products like bone meal and gelatin. Some parts, particularly brain and nerve tissue from older cattle, are classified as hazardous and must be destroyed.
How the Head Is Removed and Inspected
The head is removed manually with knives during the early stages of processing, around the same time the tail and reproductive organs are taken off. Once separated from the carcass, the head is washed and inspected in its cavities: mouth, nose, pharynx, and larynx. Federal inspectors check for signs of disease or contamination before any parts move forward for processing.
One of the first things removed is the tonsils. Under USDA regulations, tonsil tissue (lingual, palatine, and pharyngeal) is classified as a “specified risk material” in cattle of all ages because of its potential to harbor the proteins that cause bovine spongiform encephalopathy, commonly known as mad cow disease. Tonsils must be completely removed before the head can receive a mark of inspection for human consumption.
The Edible Parts
Several cuts from the cow head are commercially valuable, and many are exported. Beef tongue is the most expensive, selling at roughly $706 per hundredweight (about 100 pounds) for frozen, export-grade product. Head meat, trimmed from the skull and jaw, sells for around $282 per hundredweight. Lips bring about $165 per hundredweight. Cheek meat, prized by chefs for its rich connective tissue that breaks down during slow cooking, is another high-demand product.
These cuts are staples in cuisines around the world. In South Texas and northern Mexico, the entire cow head is the foundation of barbacoa de cabeza. Traditionally, the whole head is wrapped and slow-cooked in an underground pit, a method called “en pozo.” The cheeks, tongue, and other soft tissues cook for hours until they become tender and deeply flavored. In other regions, barbacoa can also refer to goat or lamb prepared the same way, but in South Texas it almost exclusively means beef.
Beyond barbacoa, beef tongue appears in Japanese yakiniku, Mexican tacos de lengua, and Eastern European cold cuts. Cheek meat shows up in Italian brasato and French pot-au-feu. The global demand for these cuts means a significant portion of head meat from U.S. slaughterhouses is frozen and shipped overseas.
Brain, Eyes, and Nerve Tissue
For cattle under 30 months old, the brain and eyes can legally enter the food supply. Beef brain is eaten in some cultures, though demand in the U.S. is limited. For cattle 30 months or older, however, the rules change dramatically. The skull, brain, eyes, trigeminal ganglia (nerves attached to the brain), and spinal cord are all classified as specified risk materials. These tissues must be segregated, removed, and either rendered at approved facilities or disposed of in lined landfills.
If an establishment can’t prove through documentation that an animal was younger than 30 months at slaughter, all of these tissues are treated as high-risk by default. This regulatory framework exists entirely because of BSE concerns. The disease-causing proteins concentrate in nervous system tissue, and the 30-month threshold reflects the age at which cattle become more likely to carry detectable levels.
Rendering and Industrial Uses
The parts of the head that aren’t sold as food, primarily the skull and connective tissue, go to rendering plants. Rendering is essentially a cooking and grinding process that converts animal byproducts into usable materials. Bones from cattle heads contribute to meat and bone meal, which has several industrial applications.
When meat and bone meal is incinerated, the resulting ash is composed mainly of calcium phosphates, with a mineral profile similar to natural phosphate rock. This makes it potentially useful as a fertilizer ingredient or raw material in other industries. In France, for example, meat and bone meal from certain categories has been co-incinerated in cement kilns since 1996. Skull material also contributes to the production of gelatin and bone char, which is used in water filtration and sugar refining.
Specified risk materials that can’t enter the rendering stream for animal feed are either incinerated or sent to approved, lined landfills after being denatured, a chemical process that makes the tissue unrecognizable and unusable. Carcasses or parts from animals being tested for BSE follow even stricter rules: they must be incinerated or placed in lined landfills in accordance with state and local sanitary codes, and disposal can’t happen until test results come back.
Pharmaceutical and Research Applications
The pituitary gland, a small structure at the base of the brain, is sometimes harvested for research and pharmaceutical use. Bovine pituitary extract contains a mix of growth factors and hormones, and it has demonstrated strong antioxidant properties in laboratory settings. About 30% of its protective effect against cell damage comes from residual catalase activity, an enzyme that neutralizes harmful molecules. These extracts are used primarily in cell culture media for laboratory research rather than as direct pharmaceutical products for humans, but they represent one more way the cow head is put to use beyond the butcher counter.