But journalists soon learned that Upside was a bird in borrowed feathers. Its big tanks weren’t producing its flagship “whole textured chicken” filets; to produce those it was growing chicken skin cells in much smaller laboratory flasks. Thin layers of cells were then being manually scooped up and pressed into chicken pieces. In other words, Upside was using lots of labor, plastic, and energy to make hardly any meat.
Source: The biggest technology failures of 2023 | MIT Technology Review