Quick answer
Prevent allergen cross-contact by identifying how an allergen could move into other food, then controlling those routes through storage, handling, equipment, cleaning and service. Ingredient information alone does not control transfer. Do not assume that removing a visible ingredient, using sanitiser or cooking the food will make an allergy order suitable.
Distinguish unintended transfer from an ingredient
An allergen can be intentionally present in a recipe or unintentionally transferred from another food, surface or piece of equipment. These questions require connected but different controls: reliable ingredient information and prevention of transfer.
CookSafe’s allergen house rules describe transfer through shared surfaces, equipment, flour dust and splashes. The term “cross-contact” is often used for allergen transfer; official UK guidance also uses “allergen cross-contamination”. This is distinct from the transfer or growth of microorganisms, although some hygiene measures support both.
Look for routes through the whole kitchen
| Route | Control question |
|---|---|
| Storage or decanting | Are containers closed, identified and protected from spills or dust? |
| Hands, clothing or movement | Could staff carry residues between tasks or areas? |
| Utensils and equipment | Can shared food-contact parts be effectively cleaned, or is separation needed? |
| Preparation and cooking | Do shared surfaces, oil, water or handling routes introduce the allergen? |
| Plating and service | Could garnishes, shared utensils or the wrong plate defeat earlier controls? |
Assess the actual foods and workflow. Colour coding or a designated utensil helps only if staff use and maintain the arrangement correctly. It does not prevent transfer through an unexamined route.
Choose workable separation and cleaning
Where appropriate, use separate preparation arrangements and dedicated equipment. If sharing is proposed, establish whether an effective cleaning method is practical for the equipment and allergen residues involved. Consider inaccessible parts, cloths, brushes and the movement of cleaned items back into contaminated areas.
The FSA allergen checklist supports checking ingredients, preparation and customer requests. A microbiological disinfection claim does not establish allergen removal. Do not use “sanitised” as a substitute for understanding whether the relevant residues have actually been removed.
Trace an allergy order through the controls
Illustrative example: a kitchen prepares an order using a clean board and knife but then adds a garnish with shared tongs from a mixed service area. The final handling step can undo the earlier precautions. Identify the whole route, including plating, identification and the final handover.
Keep the prepared item protected and accurately identified through service. If the required arrangement cannot be reliably achieved, explain the limitation before accepting or continuing the order. Do not remove an allergenic topping from a finished dish and present it as a fresh allergy-controlled preparation.
Check the system under real working pressure
Observe peak service, temporary staff, spill response and cleaning between tasks. Ask staff to explain what happens if an ingredient changes or the dedicated equipment is unavailable. Record the gap and verify that the corrective action works.
Use the existing cross-contamination guide for the broader hygiene context, while keeping the allergen-specific assessment explicit. A general hygiene routine is not automatically evidence that every allergy request can be accommodated.
Next steps
- Identify ingredient and transfer risks throughout the actual workflow.
- Choose effective separation and cleaning arrangements, with suitable equipment.
- Protect and identify the order through final service.
- Check real performance and communicate limitations honestly.
Read the official practical guidance — Use the current source alongside the procedures for your own business.