AI Tool Creates Burgers That Outperform Big Mac in Taste Tests, Researchers Say
Stanford University researchers developed BurgerAI, an artificial intelligence system capable of generating burger recipes that are rated as highly as a McDonald's Big Mac in blind taste tests, while also being more nutritious and sustainable.
Researchers have developed an artificial intelligence system that can create burger recipes rated as highly as the McDonald's Big Mac in blind taste tests. The AI tool, named BurgerAI, was trained on over 2,000 burger recipes and can also tailor recipes to be more nutritious and environmentally sustainable.
Stanford University researchers fed 2,216 burger recipes from Food.com into BurgerAI. The system then generated new recipes. In blind taste tests involving over 100 diners, some of the AI-designed burgers matched or surpassed a reconstructed version of the Big Mac in terms of overall liking, flavor, and texture, according to a study published in npj Science of Food.
Notably, the Big Mac recipe was not explicitly included in BurgerAI's training data. Instead, the AI learned to replicate consumer preferences by analyzing existing recipes.
Beyond taste, BurgerAI can optimize burgers for personal health and environmental impact. Researchers found that an AI-designed mushroom burger had an environmental impact score over ten times lower than typical burgers, and a bean burger achieved nearly double the nutritional score of others. This suggests that burgers with significantly lower environmental footprints can still achieve high consumer acceptance.
"Food choices are some of the most consequential decisions humans make every day," said Vahidullah Tac, a researcher on the project. "Food was an easy motivator. With one arrow, you can hit two targets — planetary health and personal health. It's a great and impactful research area."
Ellen Kuhl, a Stanford professor of mechanical engineering who led the research, stated that the goal was to move beyond AI systems that simply predict existing trends. "We wanted AI to invent what should exist next," Kuhl said. "BurgerAI does not ask, 'What burger is most likely?' It asks, 'What burger best satisfies these important and complex objectives?'"
The researchers believe that generative AI has the potential to revolutionize fields beyond food, including pharmaceuticals and product design. They see the development of BurgerAI as a demonstration of AI's capacity to serve as a partner in scientific and engineering discovery, transforming traditional methods of design from intuition-based to quantitative science.