Argentine researchers have discovered a versatile use for aquafaba – the water left over from cooking legumes like lentils. The study reveals aquafaba can successfully substitute eggs in meringue recipes, offering a vegan alternative. Beyond culinary applications, the research indicates aquafaba possesses properties suitable for creating biodegradable materials. This finding presents a sustainable alternative to traditional, less environmentally friendly materials. The aquafaba’s protein structure is believed to be key to its emulsifying and foaming capabilities, mimicking egg whites. This dual functionality – food and material science – highlights the potential of repurposing food byproducts. Further research is underway to explore the full range of applications for this legume-derived resource.