Food workers should use food-safe utensils, such as tongs, spatulas, or deli sheets, to touch the food items in display cases. These utensils help to prevent cross-contamination by avoiding direct contact between the food and the worker's hands.
Additionally, it is important that the utensils used are made of food-grade materials that are safe for use with food, such as stainless steel, plastic, or silicone. Utensils should also be cleaned and sanitized regularly to prevent the spread of harmful bacteria.