The Triangle Test is a sensory evaluation method used to determine if there are perceptible differences between two products. In this test, participants are presented with three samples: two that are identical and one that is different. They must identify the odd sample out, helping researchers assess product variations in areas like food, beverages, and cosmetics. This method is commonly used in the food industry to evaluate flavors, textures, or formulations. It provides a straightforward way to gather consumer feedback and ensure product quality, making it a valuable tool for companies like Nestlé and Coca-Cola in product development.