Certified Professional Food Safety (CP-FS) Practice Exam

Which material is not recommended for outdoor surfaces where food service occurs?

1. Asphalt

2. Gravel

3. Clay

4. Paving stones

The correct answer is: Clay

The choice of material for outdoor surfaces in food service areas is crucial for maintaining cleanliness and food safety. Clay is not recommended because it can become porous when wet, allowing moisture to retain, which can harbor bacteria and other pathogens. Additionally, clay surfaces can develop cracks over time, creating spaces where dirt and debris can accumulate, making them difficult to clean thoroughly. This compromises hygiene standards necessary in food service areas. On the other hand, materials like asphalt, gravel, and paving stones can be more suitable because they offer durability and are easier to maintain. Asphalt provides a solid, non-porous surface that can be cleaned effectively. Gravel, although it can be difficult to clean, allows for good drainage, reducing standing water which can attract pests. Paving stones create a more stable and cleanable surface that is also less likely to harbor harmful bacteria compared to clay. Thus, clay surfaces are less ideal for outdoor food service settings.