Allergen Communication Requirements
The legal obligations for food businesses to provide accurate information about the 14 declarable allergens, including requirements under Natasha's Law for prepacked for direct sale food.
Allergen communication is one of the most critical food safety obligations for UK food businesses. Under the Food Information Regulations 2014 (which implement EU Regulation 1169/2011), food businesses must provide customers with accurate information about the presence of 14 specified allergens in the food they sell. The 14 allergens that must be declared are: celery, cereals containing gluten (wheat, rye, barley, oats), crustaceans, eggs, fish, lupin, milk, molluscs, mustard, nuts (almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios, macadamia/Queensland nuts), peanuts, sesame, soybeans, and sulphur dioxide/sulphites (at concentrations above 10mg/kg or 10mg/litre). The way allergen information must be provided depends on how the food is sold. For prepacked food (food packaged before being placed for sale, such as supermarket products), full ingredient lists with allergens emphasised must appear on the label. For food sold loose (food sold without packaging, or packaged at the customer's request, such as restaurant meals), allergen information must be available before the customer orders — this can be through written information on menus, allergen matrices, chalkboards, or verbally from trained staff, provided there is a clear signpost directing customers to ask. Since October 2021, Natasha's Law has added a third category — prepacked for direct sale (PPDS) — which requires full ingredient labelling with allergens emphasised. Natasha's Law was introduced following the tragic death of Natasha Ednan-Laperouse in 2016, a 15-year-old who died from an allergic reaction after eating a Pret a Manger baguette that contained sesame but was not labelled with allergen information because it was classified as non-prepacked food. The law closed a significant loophole and now requires any food that is packaged on the same premises from which it is sold (or on the same site) to carry a label listing all ingredients with allergens emphasised. This affects a wide range of food businesses including sandwich shops, bakeries, deli counters, salad bars, and any business that wraps or packages food before displaying it for sale.
Key Points
- UK law requires declaration of 14 specific allergens — information must be provided before the customer orders
- Natasha's Law (October 2021) requires full ingredient and allergen labelling on prepacked for direct sale food
- Allergen information for non-prepacked food can be provided in writing or verbally, with a clear signpost to ask
- Effective allergen management requires controls throughout the food chain from purchasing to service
- Failure to provide accurate allergen information is a criminal offence with potentially unlimited fines
Allergen Information for Different Food Categories
Understanding the three food categories is essential for correct allergen communication. Prepacked food is food that has been placed in packaging before being offered for sale, where the contents cannot be altered without opening or changing the packaging — such as supermarket ready meals, canned goods, or bottled sauces. These must carry a full ingredient list with the 14 allergens emphasised (usually in bold). Food sold loose (non-prepacked) is food sold without packaging, such as restaurant meals, cafe food, and food served from buffets. For these, allergen information must be available but does not need to be on a label — it can be provided through written allergen matrices, menu annotations, chalkboard notices, or verbally by trained staff. If the business relies on verbal communication, there must be a clear written notice directing customers to ask about allergens. Prepacked for direct sale (PPDS) is food that has been packaged at the same premises from which it is sold, before the customer selects or orders it — such as sandwiches made and wrapped in a shop for display, or salads prepared in a kitchen and placed in containers for a buffet. Under Natasha's Law, PPDS food must carry a label listing the food name and a full ingredient list with the 14 allergens emphasised.
Managing Allergens in Practice
Effective allergen management requires a systematic approach that covers the entire food journey from supplier to customer. This starts with purchasing — the business must obtain accurate ingredient and allergen information from every supplier and update it whenever products change. During storage, allergenic ingredients should be clearly labelled and ideally stored separately or in sealed containers to prevent cross-contact. During preparation, businesses must implement controls to prevent cross-contact — this may include using separate equipment and utensils for allergen-free preparation, colour-coding chopping boards and utensils, cleaning surfaces and equipment between preparing dishes with and without specific allergens, and preparing allergen-free dishes first or in a separate area. During service, the communication chain from kitchen to customer must be robust — particularly for verbal allergen requests, which must be passed accurately to the kitchen and confirmed before the food is served. All staff must receive allergen training appropriate to their role, and this training must be refreshed regularly. The business should maintain an allergen matrix or chart covering every menu item (including specials, sides, sauces, and drinks), and this must be updated every time a recipe or supplier changes.
Enforcement, Penalties, and Emerging Developments
Failure to provide accurate allergen information is a criminal offence under the Food Information Regulations 2014 and can result in unlimited fines and imprisonment. Where allergen failures cause injury or death, more serious charges may apply under the Food Safety Act 1990, and in extreme cases, charges of corporate manslaughter or gross negligence manslaughter have been brought. Recent high-profile cases — including the prosecution following the death of Owen Carey in 2017 (who died from a dairy allergy after eating at a Byron restaurant where allergen information was not adequately communicated) — have demonstrated that the courts take allergen failures very seriously. The FSA has been working on a review of allergen labelling and communication requirements, exploring whether precautionary allergen labelling (such as "may contain" statements) should be regulated more formally, as currently there is no legal framework for precautionary labelling and its inconsistent use can undermine consumer confidence. Businesses should stay informed of developments in allergen regulation and ensure their allergen management systems are robust and kept up to date.
Frequently Asked Questions
What are the 14 declarable allergens in the UK?
The 14 allergens that must be declared under UK law are: celery, cereals containing gluten (including wheat, rye, barley, and oats), crustaceans (such as prawns, crab, and lobster), eggs, fish, lupin, milk, molluscs (such as mussels and oysters), mustard, tree nuts (almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios, and macadamia nuts), peanuts, sesame, soybeans, and sulphur dioxide and sulphites at concentrations above 10mg/kg or 10mg/litre.
What is Natasha's Law?
Natasha's Law came into effect on 1 October 2021 and requires food businesses to provide full ingredient labelling with allergens emphasised on food that is prepacked for direct sale (PPDS). PPDS is food that has been packed on the same premises from which it is sold, before the customer selects or orders it. The law was introduced following the death of Natasha Ednan-Laperouse in 2016 from an allergic reaction to a Pret a Manger baguette that did not carry allergen labelling because it was classified as non-prepacked food at the time.
Do I need to declare allergens in drinks?
Yes. Allergen declaration requirements apply to all food and drink sold by the business, including alcoholic and non-alcoholic beverages. Common allergens found in drinks include milk (in lattes, milkshakes, cream-based cocktails), cereals containing gluten (in beer, lager, and some spirits), sulphites (in wine, cider, and some soft drinks), nuts (in certain liqueurs and flavoured coffees), and eggs (in some cocktails). The allergen matrix or information system must cover drinks as well as food.
What does "may contain" mean on food labels?
Precautionary allergen labelling (PAL) such as "may contain traces of nuts" is used by food producers to indicate that a product may have been unintentionally contaminated with an allergen during manufacturing. Currently, there is no legal framework governing precautionary allergen labelling in the UK — it is entirely voluntary. The FSA has expressed concern that inconsistent use of PAL (sometimes used as a blanket disclaimer rather than based on genuine risk assessment) can reduce consumer trust and limit food choices for people with allergies. Businesses should use precautionary labelling only where a genuine cross-contact risk exists after all reasonable controls have been applied.
Can staff provide allergen information verbally?
Yes, for food sold loose (non-prepacked), allergen information can be provided verbally by trained staff. However, the business must display a clear written notice in a prominent position (such as on the menu or on a sign near the counter) directing customers to ask a member of staff about allergens. The staff providing the information must be trained, knowledgeable, and able to provide accurate information — they must know where to find allergen details for every menu item and be able to communicate them clearly. The FSA recommends that written allergen information (such as an allergen matrix) is always available as a backup to verbal communication.
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