Preventing cross-contact with allergens hinges on controlling every point where transfer could happen and reinforcing clear, consistent procedures. Using separate utensils and surfaces for different products keeps allergens from moving from one item to another through the tools or work areas. Color-coded equipment makes it quick and reliable to assign specific tools to specific products or allergen groups, so the wrong tool isn’t used by mistake. Washing hands frequently and sanitizing work surfaces and equipment between tasks remove and dilute any allergen residues that could be carried by workers or linger on the environment. Labeling products clearly communicates exactly what allergens are present, preventing accidental use or mixing of items that contain different allergens. When these practices are combined, they create multiple layers of protection at the points where contamination could occur—tools, surfaces, hands, and product labeling. Sharing equipment, not labeling items, or using the same utensils for everything all increase the risk of cross-contact, so they’re not effective approaches in an allergen-prone setting.