Climate change is making it harder to grow good coffee—and as the mountains get hotter in places like Colombia, the amount of land that’s suitable for coffee plantations is shrinking. But 5,000-plus miles away, researchers in Finland are experimenting with growing coffee from plant cells in bioreactors.
[Photo: Timo Kauppila/courtesy VTT]There are several reasons why it might make sense to have such an alternative, says Heiko Rischer, a research team leader atVTT Technical Research Centre of Finland, the state-owned organization developing the coffee. “Conventional coffee production is notoriously associated with several problematic issues, such as unsustainable farming methods, exploitation, and land rights,” he says. “Growing demand and climate change add to the problems.” In Vietnam, for example, coffee production isdriving deforestation.
[Photo: Timo Kauppila/courtesy VTT]The researchers are using the same techniques to make coffee that others are using to make “lab-grown,” or cultivated, meat. Coffee plant cells were cultured in the lab, and then placed in bioreactors filled with nutrient medium to grow. It’s a little easier to grow coffee than something like beef. “The nutrient media for plant-cell cultures are much less complex, i.e., cheaper, than those for animal cells,” Rischer says. “Scaling up is also easier because plant cells grow freely, suspended in the medium, while animal cells grow attached to surfaces.”[Photo: Timo Kauppila/courtesy VTT]The process results in an off-white biomass that’s dried into a powder, then roasted to a dark brown color that looks like coffee grounds. The scientists recently brewed their first cups of the lab-grown coffee, which they say tastes and smells like ordinary coffee. It’s also possible to make different varieties. “Cell cultures of different coffee cultivars can be established, and the roasting process can be modified, in order to produce coffee with very different character,” says Rischer. “The cultivation process can be modified in order to generate more or less of certain compounds, such as caffeine or flavors.”
[Photo: Nina Pulkkis/courtesy VTT]The lab plans to work with companies that can commercialize the new process. High-quality coffee from the tropical “coffee belt,” which stretches from Ethiopia to South America to Southeast Asia, isn’t likely to disappear. But as demand for coffee continues to grow, cell-based coffee could be one way to help the industry have less impact—and places like Finland, where coffee can’t naturally grow, could have a local coffee supply for the first time.
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