Final answer:
Wood should not be used in the construction of food preparation and storage areas due to its tendency to harbor bacteria and difficulty to sanitize.
Step-by-step explanation:
The material that must NOT be used in the construction of food preparation and storage areas is wood. Wood can harbor bacteria and is difficult to clean and sanitize properly. In contrast, materials like stainless steel, plastic, and glass are commonly used in food preparation and storage because they can be more easily cleaned and sanitized, making them safer for food contact surfaces.
It's important to avoid materials that can lead to contamination or are not able to maintain the cleanliness necessary for food safety.