Why allergen management is a food safety priority
Approximately 2 million people in the UK live with a diagnosed food allergy. For these individuals, exposure to even trace amounts of an allergen can trigger reactions ranging from mild itching and hives to anaphylaxis — a life-threatening emergency requiring immediate treatment with adrenaline (epinephrine).
Unlike food intolerance, food allergy is not about comfort — it is about survival. The deaths of Natasha Ednan-Laperouse (2016) and Owen Carey (2017), both from undisclosed allergens in restaurant food, led directly to changes in UK law and increased enforcement action by local authorities.
Allergen management failures carry significant legal, financial, and reputational consequences — including prosecution, unlimited fines, and civil liability. More importantly, they carry a risk of serious harm or death to customers.
The 14 Major Allergens (UK and EU)
Under Regulation (EU) No 1169/2011 (retained in UK law post-Brexit), food businesses must declare the following 14 allergens whenever they are used as ingredients:
Natasha's Law: What it requires
Natasha's Law applies to pre-packed for direct sale (PPDS) food — food that is packaged at the point of sale and sold at the same premises. This includes sandwiches, salads, pastries, and any other food wrapped or packaged on-site before being displayed for sale.
What PPDS food labelling must include
- The name of the food
- A full ingredients list (in descending order by weight)
- Allergens emphasised in the ingredient list (e.g., in bold, a different font, or underlined)
Natasha's Law does not require full ingredient labelling for food sold loose (unwrapped, non-pre-packed food sold to order). For non-pre-packed food, allergen information must be available to customers before purchase — but can be provided via a menu, QR code, verbal information, or a written notice directing customers to ask staff.
Cross-Contamination: The Hidden Risk
A dish can be allergen-free by recipe but still cause a reaction if it comes into contact with allergen-containing ingredients during preparation. Cross-contamination is one of the most common causes of allergic reactions in foodservice, and one of the hardest to control under service pressure.
Physical separation
Maintain allergen-free preparation areas. Use dedicated colour-coded utensils, chopping boards, and containers. Store allergen-containing ingredients clearly labelled and separated.
Procedural controls
Prepare allergen-free dishes first, before cross-contamination risk builds during service. Change gloves and wash hands between allergen and allergen-free preparation. Use fresh cooking oil for allergen-sensitive orders.
Service controls
Use clean plates, service utensils, and garnishes for allergen-sensitive dishes. Do not use the same serving spoon or tongs across allergen and allergen-free dishes.
Supplier management
Request allergen information from all suppliers and maintain up-to-date records. Verify allergen declarations when suppliers change formulations or sources — this happens more often than kitchen teams expect.
Staff Training Requirements
All food handlers and anyone involved in allergen communication (including front of house staff) must receive appropriate allergen training. This is a legal requirement under UK food law, not a recommendation.
Training must cover: the 14 major allergens and their common sources, the consequences of allergen exposure (including anaphylaxis), your kitchen's specific allergen controls and cross-contamination prevention procedures, how to respond to customer allergen queries, and the escalation process if a customer reports a reaction.
Training records must be maintained and available for inspection. Online allergen training courses (many free) are accepted, but in-house competency checks are also recommended for customer-facing and kitchen roles.
Common Questions
What is Natasha's Law and who does it apply to?
Natasha's Law is the common name for the Food Information (Amendment) (England) Regulations 2019, which came into force on 1 October 2021. It requires all food businesses in England (with similar rules in Scotland, Wales, and Northern Ireland) that prepares, packs, and sells food on the same premises to include a full ingredient list and allergen labelling on the packaging of every pre-packed for direct sale (PPDS) food item. This applies to sandwich shops, cafes, deli counters, school canteens, hospital catering, and any operation that wraps or packs food at the same site where it is sold. The law is named after Natasha Ednan-Laperouse, who died from an allergic reaction in 2016 after eating a pre-packed baguette that did not carry allergen labelling.
What are the 14 major allergens I must declare?
The 14 major allergens required to be declared under EU and UK food law are: cereals containing gluten (wheat, rye, barley, oats and their derivatives), crustaceans, eggs, fish, peanuts, soybeans, milk, nuts (almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios, macadamia nuts), celery (and celeriac), mustard, sesame seeds, sulphur dioxide and sulphites (at concentrations above 10mg/kg or 10mg/litre), lupin, and molluscs.
What is the difference between an allergen and an intolerance?
A food allergy involves an immune system response to a food protein. Even a tiny amount can trigger reactions ranging from urticaria (hives) and vomiting to anaphylaxis (a life-threatening reaction requiring emergency medical treatment). A food intolerance typically involves the digestive system and, while unpleasant, is rarely life-threatening. From a food safety and legal perspective, the 14 major allergens are the primary concern. However, best practice is to treat all dietary requirements — including intolerances — with care and to provide accurate information to customers.
How should allergen information be communicated to customers?
For non-pre-packed food (food prepared and sold loose at the same site, such as restaurant dishes), allergen information must be made available to customers before purchase. It can be provided in writing (on menus, on a notice, via a QR code to a digital menu), verbally by a trained staff member who knows the allergen content of every dish, or a combination of both. Where verbal information is relied upon, there must be a written notice directing customers to ask staff. Best practice is written information on menus or a QR-accessible digital allergen menu, supported by trained staff for follow-up questions.
How do I prevent cross-contamination in a busy kitchen?
Preventing allergen cross-contamination in professional kitchens requires a combination of physical controls, procedural controls, and training. Physical controls include: dedicated allergen-free preparation areas, colour-coded chopping boards and utensils, allergen-specific containers and storage. Procedural controls include: strict cleaning protocols before preparing allergen-free dishes, using fresh cooking oil for allergen-sensitive orders, preparing allergen-free dishes first (before cross-contamination risk), and never using the same serving utensils across dishes. Staff training must ensure every team member understands which dishes contain each allergen, the risk of cross-contamination, and the correct response when a customer reports an allergy.