ACF CWPC study materials
ACF CWPC study resources

The Allergen Ticket at the Pass

ACF CWPC · Put your knowledge to work in context.

All case studies

The Allergen Ticket at the Pass

It is Saturday night at a 90-seat restaurant. A guest at table 12 has a documented severe tree nut allergy (the reservation notes it; the server confirms it verbally). The dessert menu has four items: a hazelnut praline tart, a vanilla panna cotta with a pistachio crumble, a dark chocolate mousse with a hazelnut tuile, and a lemon tart with a shortbread crust. Your pastry section shares one bench, one set of bowls, one stack of clean side towels, and one hand sink. A commis has just finished plating three hazelnut praline tarts and two pistachio crumbles on the shared bench; the bench is dusted with nut crumb. The lemon tart is the only nut-free recipe, but its shortbread was rolled on that same bench earlier and stored uncovered. Service is mid-rush and the pass is calling for two other desserts.

1. Assess the cross-contact risk for each of the four desserts for this guest and identify which can be served safely and under what conditions.

Read the worked answer

Risk assessment for a severe tree-nut allergy:

  • Hazelnut praline tart - direct allergen. Cannot serve.
  • Pistachio crumble panna cotta - pistachio is a tree nut. Cannot serve.
  • Dark chocolate mousse with hazelnut tuile - tuile is hazelnut; even removing the tuile leaves the mousse plated on a contaminated bench. Cannot serve unless the mousse itself is verified nut-free and plated in a clean, isolated zone with clean tools - treat as high risk.
  • Lemon tart with shortbread - recipe is nut-free, but the shortbread was rolled on the shared bench and stored uncovered, so it carries cross-contact risk from bench dust and airborne crumb.

Conclusion: Only the lemon tart is a candidate, and only if you can guarantee it is free of cross-contact - which the current storage and bench state do not guarantee. For a severe allergy, "probably fine" is not acceptable. The safe answer is: serve the lemon tart only from a verified clean portion, or offer a simple alternative (e.g., fresh fruit or a sorbet from a dedicated, uncontaminated container) if cross-contact cannot be excluded.

2. Describe the exact cleaning, separation, and plating sequence you would run to serve this guest safely during a rush, and who does it.

Read the worked answer

Dedicated clean-lane procedure:

  1. Stop and clear. The commis finishes current plating, then the bench is cleared of all nut items and crumb.
  2. Clean the zone. Wash the bench with hot soapy water, rinse, then sanitize; wipe down the tools and the storage area. Wash hands at the hand sink (the one sink - do not use it for anything else mid-service).
  3. Fresh everything. Use a clean cutting board, clean knife, clean bowl, and clean side towels - not the shared stack that has been near nut crumb. If a dedicated allergen kit exists, use it.
  4. Verify the lemon tart. Take a portion from a container that has not been exposed to the bench dust; if the shortbread was stored uncovered on the contaminated bench, do not use it - pull a fresh, covered portion or substitute.
  5. Plate in isolation. Plate the lemon tart on a clean plate, in a cleared area, with clean hands/gloves, away from the nut plating station.
  6. Mark and hand off. Flag the ticket clearly as allergen, and have the server confirm the guest's name/table before it leaves the pass; ideally the manager or you walk it.
  7. Who: You (pastry chef) or a designated lead performs the clean-lane plating; the commis does not plate it while handling nut items.

Document the allergen ticket and the steps taken.

3. What systemic changes would you make after tonight to reduce allergen risk on this section?

Read the worked answer
  • Separate the allergen workflow. Designate a nut-free prep zone and a dedicated set of tools/boards/towels, color-coded if possible.
  • Storage discipline. Store nut-free components covered and physically separated from nut items; never store uncovered on a shared bench.
  • Recipe and menu labeling. Mark each dessert on the menu and station card with its allergens; the lemon tart's nut-free status should be explicit and protected.
  • Allergen kit. Keep a clean, sealed allergen plating kit (board, knife, towel, gloves) on the section.
  • Training and communication. Train the commis on cross-contact, the hand-sink rule, and the ticket-flagging protocol; brief front of house on confirming allergy notes at the table.
  • Audit. Review the section's flow so nut and nut-free items are not prepped on the same bench at the same time.