A Marriage of Robotics and Culinary Art
Researchers in Switzerland and Italy have unveiled a world-first: an edible robotic wedding cake named RoboCake. Complete with dancing gummy teddy bears and chocolate-powered LED candles, the project merges robotics, food science, and sustainability in a groundbreaking way.
RoboCake is the result of a collaboration between the Swiss Federal Institute of Technology in Lausanne (EPFL), the Italian Institute of Technology (IIT), and pastry experts from the EHL hospitality school in Lausanne. It’s designed not only to wow at celebrations but also to highlight future possibilities for reducing electronic and food waste.
Dancing Gummy Bears and Edible Batteries
The top tier of RoboCake features two gummy bears that move thanks to internal pneumatic tubes. Made from gelatin and syrup, the robotic bears are programmed to perform subtle gestures such as hugging. “They have inner tubes that can be pressurised… the necks move up and down, and their arms hug,” explained Professor Dario Floreano, head of EPFL’s Laboratory of Intelligent Systems.
Meanwhile, the LED candles on the cake are powered by the world’s first edible rechargeable batteries. Developed by IIT, these batteries include ingredients such as vitamin B2, quercetin, activated carbon, and dark chocolate. “The casing is made completely with chocolate,” said Mario Caironi, senior researcher at IIT.
The batteries operate through a chemical reaction involving an edible electrolyte. Unlike traditional power sources, they are safe to consume and biodegrade after use, offering a solution to the 40 million tons of electronic waste generated each year.
Towards Edible Technology for Health and the Environment
Beyond its novelty, RoboCake introduces serious potential for medical and environmental applications. The team is working on ingestible “smart pills” that monitor digestion by measuring stomach pH and then degrade safely inside the body.
Edible robots could also serve as eco-friendly monitoring devices. Deployed in forests or lakes, these devices can collect environmental data and eventually serve as food for animals. “They provide nutrition to wildlife after completing their task,” said Floreano.
By combining innovation and sustainability, RoboCake represents a sweet step forward in the development of edible robotics.
with inputs from Reuters
