The 14 UK Allergens
Celery Allergen: Where It Hides & How to Manage It in Your Kitchen
Managing Celery as an Allergen in Your Food Business
Celery is one of the 14 allergens that must be declared under UK food law, yet it is also one of the most frequently overlooked. Unlike peanuts or shellfish, celery does not carry the same "high alert" reputation among kitchen teams, which makes it more dangerous in practice. The allergen covers all parts of the celery plant including stalks, leaves, seeds, and celeriac (celery root). Celery allergy can trigger severe reactions including anaphylaxis, and the protein responsible is not destroyed by cooking. For food business operators, the challenge is that celery and its derivatives are used as background flavouring in hundreds of products. Stock cubes, bouillon powders, seasoning blends, ready-made sauces, soup bases, spice mixes, and even some processed meats contain celery or celery seed extract. If your kitchen uses any of these, celery is almost certainly present on your menu whether you realise it or not.
Key takeaways
Celery allergen covers stalks, leaves, seeds, and celeriac, and the protein survives cooking.
Stock cubes, bouillon, seasoning blends, and processed meats are the most common hidden sources of celery in commercial kitchens.
Audit every bought-in product for celery content using supplier specification sheets, not just front-of-pack labels.
Picking celery out of a dish does not make it safe - the proteins transfer to the cooking liquid and surrounding ingredients.
Where Celery Hides in Your Menu
Celery is a workhorse flavouring ingredient in professional kitchens. The obvious sources are fresh celery in salads, soups, and stir-fries, but the hidden sources are far more common. Stock cubes and bouillon powder almost universally contain celery or celery extract. This means any dish made with stock - risottos, gravies, pie fillings, casseroles, curries, sauces - may contain celery allergen even if the recipe never calls for fresh celery. Seasoning blends are another major source. Many commercial spice mixes, rubs, and marinades include celery salt or celery seed. Bloody Mary mix typically contains celery salt. Waldorf salad, coleslaw, and potato salad recipes frequently call for celery. Some processed meats such as sausages, pates, and stuffing balls list celery or celery powder in their ingredients. Celeriac (celery root) is increasingly popular on UK menus as a mash, remoulade, or soup ingredient, and it carries the same allergen. The key action for operators is to audit every bought-in product in your kitchen for celery content by checking supplier specification sheets, not just front-of-pack labels.
Cross-Contact Prevention for Celery
Cross-contact with celery is a real risk because of how it is used in kitchens. Fresh celery leaves tiny fibres and residue on chopping boards and knives. Celery-containing stocks and sauces can splash during cooking. Seasoning blends with celery salt are often stored in open containers near prep areas. To prevent cross-contact, start by identifying which dishes contain celery and which are celery-free. Keep celery-free dishes genuinely separated during preparation. Use dedicated chopping boards and utensils when preparing celery-free meals for allergic customers, or at minimum, wash boards and knives thoroughly with hot soapy water between uses. Store celery-containing ingredients (especially powders and dried seasonings) in clearly labelled, sealed containers away from allergen-free prep areas. When making celery-free versions of dishes that normally use stock, switch to a confirmed celery-free stock product rather than trying to remove celery from your standard stock. Brief your team that "picking out the celery" does not make a dish safe for someone with a celery allergy - the proteins transfer to the cooking liquid.
Labelling and Declaration Requirements
Under the Food Information Regulations 2014 (which implement Natasha's Law for prepacked for direct sale foods), celery must be declared when present as an ingredient or as part of a compound ingredient. For prepacked foods, celery must be emphasised in the ingredients list - typically in bold. For non-prepacked foods (meals served in restaurants, cafes, and takeaways), you must be able to tell customers which of the 14 allergens are present. This can be done through written information on menus, a separate allergen matrix, or by directing customers to ask a member of staff - but if you use the "ask staff" route, every member of staff who serves food must be able to provide accurate allergen information. For prepacked for direct sale items (sandwiches, salads, and baked goods made on-site and packaged before the customer selects them), you need a full ingredients list with celery emphasised. Do not forget compound ingredients: if your soup contains a stock cube that contains celery, the celery must be declared in the soup even though you did not add celery directly.
The 14 UK Allergens
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The biggest risk with celery allergen is staff not realising it is there. Train your team on the non-obvious sources: stock cubes, seasoning blends, bought-in sauces, and processed ingredients. Make it part of your induction process that new starters learn to check product labels for celery content. Keep a master allergen matrix updated and accessible in the kitchen so that staff can quickly check which dishes contain celery. When suppliers change product formulations or you switch to a new supplier, update your allergen information immediately. Assign responsibility for checking new product specifications to a specific person, not just "everyone". During service, establish a clear protocol for allergen requests. When a customer declares a celery allergy, the server should communicate directly with the kitchen, confirm which dishes are safe, and relay the information back. The dish should be prepared with dedicated utensils or freshly cleaned equipment, and ideally flagged with an allergen marker during service. Document your celery allergen controls in your food safety management system so that EHOs can see you have a systematic approach.
What to do next
Audit all stock cubes, bouillon, and seasoning blends for celery content
Go through every bought-in product in your kitchen and check the specification sheet or ingredients list for celery, celery seed, celery salt, celery extract, or celeriac. Record the results in your allergen matrix.
Source a confirmed celery-free stock product
Identify and stock at least one celery-free stock cube or bouillon for use when preparing dishes for celery-allergic customers. Label it clearly and store it separately from celery-containing alternatives.
Add celery to your new starter allergen induction checklist
Ensure your induction process specifically highlights celery as a commonly overlooked allergen and lists the hidden sources relevant to your menu.
Common mistakes to avoid
Mistake
Assuming celery is only present when fresh celery is used in a recipe
Instead
Check every bought-in ingredient for celery derivatives. Stock cubes, seasoning blends, and processed meats are far more common sources than fresh celery in most kitchens.
Mistake
Telling a customer a dish is celery-free without checking compound ingredients
Instead
Always verify against your allergen matrix and check the specification sheets of all bought-in components in the dish, not just the recipe card.
Frequently asked questions
Is celeriac the same allergen as celery?
Yes. Celeriac (celery root) is part of the same plant species as stalk celery and contains the same allergenic proteins. If a customer has a celery allergy, celeriac must also be avoided. Declare both under "celery" in your allergen information.
Does cooking destroy the celery allergen?
No. The proteins in celery that cause allergic reactions are heat-stable and survive boiling, roasting, and frying. A dish made with celery-containing stock is just as much of a risk as a raw celery salad.
Do I need to declare celery salt on my menu?
Yes. Celery salt contains ground celery seed and must be declared as a celery allergen. This applies wherever it appears: Bloody Marys, seasoning on chips, coleslaw dressings, and any dish where celery salt is used as a flavouring.
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