Lab-Grown Meat Technology: Cultivated Beef From Biopsy to Burger

The First Cultivated Beef Burger Cost $330,000 in 2013

On August 5, 2013, food critic Josh Schonwald and nutritional scientist Hanni Rützler ate the world's first cultivated beef burger in London. The meat had been grown from bovine satellite cells by Dr. Mark Post's lab at Maastricht University, funded by Google co-founder Sergey Brin. Production cost: approximately $330,000 for a 142-gram patty. By 2023, the same process could produce cultivated beef at costs estimated between $10 and $50 per kilogram in laboratory settings — still above conventional beef prices but 99.97% cheaper than a decade earlier. The trajectory mirrors early semiconductor and solar cell cost curves: steep exponential decline driven by process optimization, scale, and competition.

Cultivated meat — also called cell-based, cell-cultured, or lab-grown meat — is genuine animal meat produced by cultivating animal cells in bioreactors rather than slaughtering animals. The cells are identical to conventional meat cells; the product contains the same proteins, fats, and nutrients.

The Production Process: From Biopsy to Burger

Producing cultivated meat involves four stages:

• Cell sourcing: A small biopsy (a few grams of tissue) is taken from a living animal without harm. Target cell types include skeletal muscle cells (myosatellite cells), fat cells (adipocytes), and connective tissue cells (fibroblasts). A single biopsy can theoretically yield enough cells to produce tens of thousands of kilograms of meat through proliferation.
• Cell proliferation: Cells are placed in a growth medium — a nutrient solution containing amino acids, glucose, salts, vitamins, and growth factors — and multiplied in controlled-temperature bioreactors. Cells divide rapidly under the right conditions; this stage produces large volumes of undifferentiated cells.
• Differentiation: Proliferated muscle stem cells are induced to differentiate into mature muscle fibers by altering the growth medium composition and mechanical conditions. Myotubes (muscle fibers) form and fuse into tissue.
• Scaffolding and structuring: Producing structured meat (steak, whole cuts) requires cells to grow in three-dimensional arrangements. Scaffolds made from food-grade materials — soy protein, fungi-derived mycoprotein, alginate, or textured plant protein — provide a structural matrix for cells to attach to and grow into fibrous muscle tissue mimicking the texture of conventional meat.

The Growth Medium Problem

Until recently, the dominant growth medium for animal cell culture was Fetal Bovine Serum (FBS) — blood collected from bovine fetuses. FBS is effective, inexpensive relative to alternatives, and widely available — but it requires animal slaughter, undermining the ethical premise of cultivated meat, and varies batch-to-batch in ways that affect cell behavior. Replacing FBS with serum-free, animal-free growth media is the central technical and commercial challenge of the cultivated meat industry.

GOOD Meat (Eat Just) and Upside Foods have both claimed development of serum-free media formulations, though cost and scalability remain active challenges. Growth factor costs currently represent 50–90% of total medium cost, and scaling recombinant growth factor production is considered the critical bottleneck for cost reduction.

Regulatory Approvals

Singapore became the first country to approve cultivated meat for commercial sale in December 2020, when GOOD Meat received authorization from the Singapore Food Agency. The US followed with a two-step process:

• In November 2022, the FDA issued a No Questions letter to UPSIDE Foods, concluding its pre-market consultation on cultivated chicken — effectively confirming the product is safe for human consumption.
• In June 2023, both UPSIDE Foods and GOOD Meat received USDA FSIS grant of inspection, allowing commercial sale of cultivated chicken in the United States. Sales launched at select restaurants in San Francisco (Bar Crenn) and Washington, D.C. (China Chilcano).

Italy banned cultivated meat production and sale in November 2023, citing cultural and agricultural protection concerns. Austria, Hungary, and Romania have expressed similar opposition. The EU's Novel Food regulation requires pre-market authorization for cultivated meat; no EU approvals had been granted as of early 2025.

Environmental Claims and Their Nuances

• Land use: Cultivated meat production requires vastly less land than conventional livestock farming — estimates range from 95–99% less land for equivalent protein output.
• Water use: Estimates suggest 82–96% reduction in water consumption compared to conventional beef.
• Greenhouse gas emissions: This is contested. A 2023 UC Davis study found that if cultivated meat production uses standard electrical grid energy rather than renewable energy, its long-term climate impact could be higher than beef because CO₂ (released by energy use) persists in the atmosphere for centuries, while methane from livestock decays in decades. Climate benefit is conditional on renewable energy powering bioreactors.
• Animal welfare: Dramatically fewer animals needed for biopsies vs. slaughter — but FBS use (if not eliminated) remains an ethical concern.

The cultivated meat industry faces a convergence of technical, regulatory, and economic challenges that conventional food production has solved over centuries. Whether those challenges can be solved quickly enough to make meaningful contributions to food system sustainability before mid-century remains the central open question in agricultural technology.