What do shields over light bulbs and heat lamps primarily prevent?

Shields over light bulbs and heat lamps primarily prevent physical contamination. This is particularly important in food service and preparation areas where such lamps are used. The shields act as a protective barrier to prevent debris, dust, or any physical objects from falling directly onto the light bulbs or heat lamps and potentially contaminating the food that is being kept warm or illuminated.

In food service environments, maintaining the integrity and safety of food is crucial. Physical contaminants can come from various sources, including the environment or even equipment that is in close proximity to the food. By using shields over these light sources, establishments can ensure that food safety is prioritized by minimizing the risk of unwanted physical particles entering areas where food is handled or displayed.

While chemical contamination, overheating of lights, and foodborne illnesses are relevant concerns in food safety, they are not the primary focus of using shields over light bulbs and heat lamps, which are specifically designed to block physical contaminants from reaching food.