Araven Allergen Polypropylene 1/4 Gastronorm Food Storage Container Purple 4.3LtrThe purple colour of Araven's airtight container identifies and differentiates from the rest of the containers, food for customers with allergies or food intolerences, in order to seperate and protect it from possible contamination by substances that may trigger an allergic reaction. Correct identification will avoid any inadvertent intake of such foods by this risk group.