What is Cross-Contamination?

In an allergen context this is often called 'cross-contact,' and it's the risk that catches even careful kitchens. A dish can contain no allergen ingredient and still be dangerous because it shared a fryer, a cutting board, a pair of tongs, or a prep surface with an allergen. For a guest with a severe allergy, a trace amount matters.

Prevention runs through the whole operation: dedicated equipment or thorough cleaning between tasks, separate prep areas, careful glove and utensil changes, and clear communication so the line knows an allergy order is coming. It's a shared front-of-house and back-of-house responsibility — the server flags it, the kitchen executes it.

Because the risk lives in hidden detail (the shared fryer, not the ingredient list), it's exactly the kind of thing that has to be trained and verified, not assumed. Allergen questions that pair the recall with the consequence — 'a guest with a gluten allergy orders the calamari; what's the risk?' — are how ShiftTrained trains this.