In a historic milestone for “cellular agriculture,” Israeli biotech startup Celleste Bio has debuted the world’s first milk chocolate bars featuring lab-grown cocoa butter. The breakthrough was achieved in collaboration with the global confectionery giant Mondelēz International (the maker of Cadbury and Toblerone), which utilized the cell-cultured ingredient to produce nearly a dozen prototype bars.
The launch signals a potential shift in the $150 billion global chocolate industry, which is currently reeling from record-high cocoa prices, climate-driven crop failures, and increasing regulatory pressure over deforestation in West Africa.
The Technology: From a Single Bean to a Ton of Butter
Unlike traditional chocolate, which requires years of tree growth and massive land use, Celleste Bio’s process utilizes “cell suspension culture technology.”
- The Process: Researchers take a sample of cells from a single high-quality cocoa bean and place them in a bioreactor. These cells are “fed” a nutrient broth, where they replicate and produce cocoa butter that is bio-identical to the farm-grown version.
- Efficiency: Celleste claims it can produce one ton of cocoa butter annually using a 1,000-liter bioreactor. To produce the same amount traditionally, a farmer would need approximately one hectare (2.5 acres) of cocoa trees.
- Identical Experience: Sensory panels confirmed that the lab-grown bars deliver the same “melt-in-your-mouth” texture, snap, and flavor profile as conventional high-end milk chocolate.
Why It Matters: The “Cocoa Crisis” of 2026
The debut comes at a critical time for the chocolate market. In the last three years, cocoa prices have remained volatile due to:
- Climate Change: Erratic weather in Ivory Coast and Ghana (which produce 60% of the world’s cocoa) has led to back-to-back harvest failures.
- Disease: Swollen-shoot virus has decimated millions of trees.
- Regulation: New EU laws now ban the import of commodities linked to deforestation, forcing companies to find “traceable” or alternative sources.
The Lab-Grown Chocolate Landscape (2026)
While Celleste Bio is the first to produce a milk chocolate bar with bio-identical butter, other players are racing to bring similar innovations to market:
| Startup | Technology | Status |
| Celleste Bio | Cell-Cultured Cocoa Butter | Prototype Bars Debuted (April 2026) |
| California Cultured | Plant Cell Culture | Professional product launch slated for late 2026 via Puratos. |
| Planet A Foods | Precision Fermentation | Scaling “ChoViva” (cocoa-free) via partnership with Barry Callebaut. |
| Voyage Foods | Upcycled Ingredients | Producing “cocoa-free” chocolate using seeds and grains. |
The Roadmap to Your Grocery Aisle
Despite the successful debut, you won’t find lab-grown chocolate on store shelves just yet.
- Scaling: Celleste Bio is currently moving from its R&D pilot facility to commercial-scale production, with a goal of reaching market-ready quantities within the next two years (by 2028).
- Pricing: At present, lab-grown cocoa butter remains significantly more expensive than commodity cocoa. However, with cocoa prices hitting historic highs, the “price gap” is narrowing rapidly.
- Customization: Because the process is controlled, Celleste is using AI modeling to customize cocoa butter with specific melting points and flavor profiles, offering manufacturers a level of consistency impossible with natural crops.
CEO Insight: “We aren’t looking to replace the farmer,” said Michal Beressi Golomb, CEO of Celleste Bio. “We are here to supplement a broken supply chain and ensure that chocolate remains an affordable luxury for the next generation without costing the planet its rainforests.”
