Every server should know the major food allergens by heart, because allergens are the one part of the menu where a wrong answer can seriously harm a guest. In the United States that means nine allergens; in the UK and EU it means fourteen. Learn the list for your country, then learn which dishes on your menu contain each one and drill it by recall. The fastest way to build that drill is to photograph the menu into MenuFlashcards, which sorts it into an allergen practice set.

This is the allergen-focused companion to the full plan for memorizing a menu fast. Here is what to know and how to practice it.

The allergens every server must know

The list depends on where you work. According to the US Food and Drug Administration’s guidance on the major food allergens, the United States recognizes nine: milk, egg, fish, shellfish, tree nuts, peanuts, wheat, soy, and sesame. Sesame is the newest; the FASTER Act named sesame the ninth major food allergen effective in 2023, so older training material may still list only eight.

In the UK and EU the list is longer. The UK Food Standards Agency requires information on fourteen allergens, adding celery, mustard, sulphur dioxide and sulphites, lupin, molluscs, and cereals containing gluten. Know the list that applies to your restaurant, not a generic one.

Why allergens are the highest-stakes part of the menu

Allergens deserve more study time than anything else on the menu for two reasons. First, the stakes: a mistake can send a guest to the hospital. Second, the frequency: guests and managers ask about allergens constantly, so this is recall you will use every shift.

That combination is why allergens should be a separate drill, studied first, not a glance at the end of your session. The part of the menu you cannot afford to get wrong is the part to practice most.

Map each allergen to your dishes, including hidden sources

Knowing the list is not enough. You need to know which specific dishes contain each allergen, including the sources guests do not expect. The hidden ones cause the most trouble:

  • Fish: Caesar dressing and many sauces contain anchovy.
  • Dairy: butter finishes, creamy sauces, and some breads.
  • Soy: soy sauce, many marinades, and some fried-food oils.
  • Tree nuts: pesto, some desserts, and certain oils.
  • Gluten: soy sauce, fried items sharing a fryer, and thickened sauces.

Build a card for each allergen that lists every dish containing it. That is the view a guest with an allergy actually needs from you.

How to drill allergens so they stick

Drill allergens by recall, not by rereading the menu. A review of the testing effect found that producing an answer from memory fixes it far better than reviewing it, so the right practice is to ask yourself “which dishes contain shellfish?” and answer before checking, rather than scanning a highlighted menu.

Run the drill in both directions. Go allergen to dish (which dishes have nuts), and dish to allergen (what does the pad thai contain). Real guest questions come both ways, so practice both. A photo-to-cards app like MenuFlashcards generates this two-way allergen drill from your menu automatically, which is why it is the simplest way to rehearse the high-stakes part directly.

What to do when you are not sure

The most important rule is to never guess. If you are not certain a dish is safe for an allergy guest, say you will confirm with the kitchen, then confirm. A confident wrong answer is the dangerous one. Studying allergens well is what lets you answer most questions instantly, but the discipline of verifying the uncertain ones is what keeps guests safe.

How to handle an allergy table

When a guest mentions an allergy, a simple routine keeps everyone safe. First, take it seriously and repeat it back, so the guest knows you heard. Second, tell the kitchen directly rather than relying only on a written note, because a verbal flag to the line is harder to miss. Third, name the options you are sure are safe and confirm anything uncertain before you promise it. Fourth, watch for cross-contact, the hidden risk where a safe dish picks up an allergen from a shared fryer, board, or utensil, and ask the kitchen whenever you are not certain. Drilling allergens by recall is what lets you handle the first three steps smoothly and instantly; the fourth is always a kitchen confirmation, never a guess from memory.

Bottom line

Every server should know the major allergens for their country cold, map each one to the specific dishes on their menu, drill it by recall in both directions, and never guess when unsure. Allergens are the highest-stakes recall on the menu, so they get the most practice. MenuFlashcards turns a photo of your menu into an allergen drill, which makes it the simplest way to practice the part you cannot get wrong. It is in early access on iPhone.