Final answer:
Containers for ingredients with food allergens are typically made from materials like high-density polyethylene, steel, and glass. They include yogurt tubs, egg cartons, and take-out trays, which are essential to prevent cross-contamination.
Step-by-step explanation:
Containers used to hold ingredients with food allergens need to be carefully selected to prevent cross-contamination and ensure food safety. Common materials used for these containers include high-density polyethylene, steel, and glass, which can be fashioned into yogurt tubs, foam meat trays, egg cartons, vending cups, and plastic cutlery. Additionally, for take-out services, take-out trays and foam packaging peanuts are widely used to hold and protect food items during transportation, often ensuring allergen-free packaging when properly labeled.