Which statement best describes a vehicle for bacterial contamination?

• A. Air, sunlight, and sealed packaging
• B. Hand, cloths and equipment; hand-contact surfaces; food-contact surfaces
• C. Only metal surfaces
• D. Cooking temperatures

Answer: (B)

Bacteria spread most effectively through contact routes in a kitchen. They move from dirty hands, cloths, and equipment onto surfaces that touch food, and then onto other foods. That means hand-contact surfaces (like taps or handles) and food-contact surfaces (like cutting boards, utensils, and worktops) are the main ways contamination is transmitted. Keeping hands clean and sanitizing cloths, equipment, and all food-contact and hand-contact surfaces breaks these transfer paths and helps prevent cross-contamination. Cooking temperatures and other controls are what kill bacteria, not how contamination is transferred. Air or sunlight aren’t reliable primary vehicles for ongoing contamination in food prep, and metal isn’t inherently special—contamination can transfer across many materials when they’re dirty.