Allergens in the dining hall of a colegio mayor or student residence in Spain: what the law requires (2026)
In law, the dining hall of a colegio mayor (a Spanish hall of residence with a formative programme) or of a student residence is a mass caterer, and that is enough to make information on the fourteen allergens mandatory for every dish. Here is which rules require it, the ways it can be given, why "may contain allergens" is not an answer, and what the rules do not say, which is almost as much as what they do.
The short answer
Three texts are read together: an EU regulation that sets what has to be disclosed, a Spanish royal decree that says how, and a guide from AESAN, the Spanish Agency for Food Safety and Nutrition, that clarifies what does not count.
| Question | Answer | Where it says so |
|---|---|---|
| Is the dining hall a "mass caterer"? | Yes: the definition expressly includes canteens. | Regulation (EU) 1169/2011, Art. 2(2)(d) |
| What has to be disclosed? | The Annex II allergens present in each dish. For mass caterers, only that. | Regulation 1169/2011, Art. 44(1)(a); RD 126/2015, Art. 4(2) |
| How? | In writing, on a label or a sign next to the dish, or orally with a written or electronic record kept at the centre itself. | RD 126/2015, Art. 6(2) and 6(5) |
| Does "everything may contain allergens" count? | No. "May contain" is voluntary and cannot be used generically. | Regulation 1169/2011, Art. 36(3)(a); AESAN guide |
| Must they appear on the menu? | Not required. The menu is one of the possible means. | RD 126/2015, Art. 6 |
| What if it goes wrong? | The penalty regime of Act 17/2011 on food safety and nutrition applies. | Act 17/2011, Arts. 50 to 52 |
Sources: official texts in the BOE, Spain's official gazette, and the AESAN application guide.
Why a residence dining hall is a mass caterer
Regulation (EU) No 1169/2011, on the provision of food information to consumers, does not name student residences or colegios mayores. It does not need to. Its Art. 2(2)(d) defines mass caterers like this:
"any establishment […], such as restaurants, canteens, schools, hospitals and catering enterprises in which, in the course of a business, food is prepared to be ready for consumption by the final consumer"
A dining hall where food is cooked for the residents meets the definition, whether the kitchen is the centre's own or run by a contracted catering company. What changes with outsourcing is who keeps the information up to date, and the contract should say so in writing.
In Spain, Royal Decree 126/2015 develops that rule for food presented without packaging "for sale to the final consumer and to mass caterers" (Art. 2(2)(a)). That is what comes out of a residence kitchen: plated dishes, not labelled packets.
The fourteen allergens, in full
Art. 9(1)(c) of the Regulation requires mention of "any ingredient or processing aid listed in Annex II […] causing allergies or intolerances […] and still present in the finished product, even if in an altered form". Art. 44(1)(a) says that, for non-prepacked food, that mention "shall be mandatory". The Annex II substances, what a dining hall simply calls allergens, are fourteen:
- Cereals containing gluten: wheat, rye, barley, oats, spelt, kamut or their hybridised strains, and products thereof.
- Crustaceans and products thereof.
- Eggs and products thereof.
- Fish and products thereof.
- Peanuts and products thereof.
- Soybeans and products thereof.
- Milk and products thereof, including lactose.
- Nuts: almonds, hazelnuts, walnuts, cashews, pecan nuts, Brazil nuts, pistachio nuts and macadamia nuts.
- Celery and products thereof.
- Mustard and products thereof.
- Sesame seeds and products thereof.
- Sulphur dioxide and sulphites at concentrations of more than 10 mg/kg or 10 mg/litre, in terms of total SO2.
- Lupin and products thereof.
- Molluscs and products thereof.
Several points carry listed exceptions, such as wheat-based glucose syrups or fully refined soybean oil: the list from memory is not enough.
Art. 4(1)(b) of Royal Decree 126/2015 requires each allergen to be named "with a clear reference to the substance or product concerned", and treats this as met when the name of the dish already says it. "Grilled hake" already says fish; "hake in batter" says neither egg nor gluten. The AESAN guide adds that the specific name is sometimes more useful: hake rather than fish, squid rather than mollusc.
And Art. 4(2) limits what is required: for non-prepacked food supplied by mass caterers, only the mention of allergens is mandatory. No full ingredient list and no quantities are needed.
AESAN — labelling of substances that cause allergies and food intolerances (in Spanish)How the information can be given
Royal Decree 126/2015 allows several routes, which can be combined.
In writing, next to the dish
Art. 6(2) says the particulars "shall be presented in writing on labels attached to the food or on signs […] on the food or close to it". On a self-service line it is the sign next to each tray; with a plated menu, the day's sheet on display.
Orally, with a record kept at the centre
Art. 6(5) allows other appropriate means, provided they are accessible before the act of purchase ends — in a dining hall, before serving oneself — and involve no additional cost. The oral route requires two conditions at once:
"1. The information can be supplied easily and when requested, before the act of purchase ends, by the establishment's staff or through alternative means that involve no additional cost to the consumer. 2. The information is recorded in writing or electronically at the establishment where the food is offered for sale and is easily accessible both to the establishment's staff and to the control authorities and consumers who request it."
In addition, Art. 6(5)(b) requires a visible sign in the serving area saying where the information is, or that staff can be asked. That sign is unnecessary if the allergens are already on labels or signs next to each dish (Art. 6(5)(c)).
Worth knowing
What gets taken for granted: that it is enough for whoever cooks to know. The oral route without a record does not comply. There has to be a written or electronic record at the centre itself — the AESAN guide gives product sheets or recipes of the dishes as examples — accessible to staff, to inspectors and to any resident who asks. If the person who knows what goes into the sauce is off on Sunday, the record still has to be there.
Adapted meals
Where meals specifically adapted to people with allergies or intolerances are served, such as a coeliac resident's diet without gluten, Art. 6(5)(d) waives the sign, but the information has to be available and "shall be provided whenever requested" by consumers or the control authorities. AESAN gives school canteens as the example, where nobody chooses the dish.
Knowing which resident is allergic to what is, moreover, health data, with its own rules on access and retention: see the data protection guide for residences.
AESAN — application guide on food information requirements for non-prepacked food (PDF, in Spanish)Apps, WhatsApp and the menu on a phone
The rules mention no apps, messaging or screens. They speak of "other appropriate means" accessible before the act of purchase ends (Art. 6(5)) and, within the oral route, of "alternative means that involve no additional cost" to the consumer (Art. 6(5)(a)). The AESAN guide gives a menu, a recipe book or oral information as examples.
Read that way, a channel where a resident asks what is in the dish of the day and gets the answer before serving themselves can fit as an alternative means, under three conditions that do not change because it is digital: no cost, before eating, and drawn from the record that has to exist at the establishment. It replaces neither that record nor the sign in Art. 6(5)(b).
And what AESAN asks of staff applies to a person and to an automated system alike: do not tell someone a dish is without an ingredient "unless you are absolutely sure […] not even through cross-contamination". An answer cannot be more reliable than the sheet it comes from.
"May contain": what is voluntary and what does not count
Mentioning the "possible and unintentional presence" of a substance causing allergies is voluntary information (Art. 36(3)(a) of Regulation 1169/2011). Nobody has to include it, but if it is included it must meet Art. 36(2): not mislead, not be ambiguous or confusing and, where appropriate, be based on the relevant scientific data.
The AESAN guide is clear about the most common use: "you cannot state that you do not know the allergens" present in the food, nor is it admissible to state "generically that all the food […] may contain allergens". A sign saying that about the whole kitchen informs nobody of anything.
Worth knowing
What gets taken for granted: that "may contain" protects the centre. The rules do not regulate cross-contamination or require it to be declared, and the AESAN guide asks for the opposite of hiding behind it: if you do not know for certain that a dish is without an allergen, not even through cross-contamination, you do not tell the allergic person they can eat it.
Who imposes penalties, and which
Royal Decree 126/2015 has no penalty article of its own and refers to no law. The regime that applies is that of Act 17/2011 on food safety and nutrition, whose Art. 50(1)(b) makes it an infringement to place on the market food with insufficient, defective or fraudulent labelling.
- Minor: insufficient or defective labelling, "provided that such breach is not classified as a serious or very serious infringement" (Art. 51(1)). A fine of up to 5,000 euros (Art. 52(1)(a)).
- Serious: the same breach "when such breach entails a risk to public health" (Art. 51(2)). A fine of between 5,001 and 20,000 euros (Art. 52(1)(b)).
- Very serious: a fine of between 20,001 and 600,000 euros (Art. 52(1)(c)). The authorities may also order the temporary closure of the establishment for up to five years (Art. 52(2)).
The line between minor and serious is drawn by the risk to health, and an undeclared allergen served to an allergic person hardly stays on the minor side. Penalties are imposed by the competent public authorities (Art. 52(1)).
What the rules do not say
- They do not require allergens on the menu. Labels, signs or the oral route with a record all count.
- They do not mention apps or WhatsApp. They speak of alternative means at no additional cost, always with the record at the establishment.
- They do not regulate cross-contamination or require "may contain", which is voluntary (Art. 36(3)(a)). The AESAN guide does ask for caution.
- They do not name student residences or colegios mayores. These come in through "mass caterers" and "canteens".
- This guide does not cover regional laws, which may add rules of their own, or Delegated Regulation (EU) 78/2014, which amended Annex II.
Frequently asked questions
Do we have to give allergen information if the menu is set and residents do not choose?
Yes. The duty in Art. 44(1)(a) of Regulation 1169/2011 applies to all non-prepacked food a mass caterer serves, chosen or not. What a set menu with adapted diets changes is the sign: Art. 6(5)(d) of Royal Decree 126/2015 does not require it where meals specifically adapted to people with allergies are served, but the information has to be available and provided whenever the resident or an inspector asks for it.
Is a sign saying "ask in the kitchen" enough?
It can be, if there is a record behind it. Art. 6(5) of Royal Decree 126/2015 allows oral information when it is given easily and before serving, and when it is recorded in writing or electronically at the centre itself, accessible to staff, inspectors and whoever asks. The sign has to be visible in the serving area. Without that record, the oral route does not comply, even if the staff know the dishes by heart.
Do we have to put the allergens on the menu or the weekly menu?
It is not mandatory. Royal Decree 126/2015 allows labels or signs next to the dish (Art. 6(2)) or other appropriate means, including oral information with a record (Art. 6(5)). The AESAN guide mentions the menu as one of those means, not the only one. Publishing the weekly menu with its allergens can be good practice, but if a dish changes on the day of service, what counts is that day's information.
Can we say that all our dishes may contain allergens?
Not as a substitute for the information. The AESAN application guide says you cannot state that the allergens are unknown, nor state generically that all the food in the establishment may contain them. Mentioning possible unintentional presence is voluntary (Art. 36(3)(a) of Regulation 1169/2011) and, if used, must not mislead or be ambiguous (Art. 36(2)). The allergens present in each dish still have to be declared.
Can allergen information be given over WhatsApp or through an app?
The rules do not mention apps or messaging. They allow alternative means that involve no additional cost to the resident and are available before serving (Art. 6(5) of Royal Decree 126/2015). A digital channel can fit there, but it replaces neither the written or electronic record that has to exist at the centre itself nor the sign saying where the information is. And whatever it answers has to come from that record, not from anyone's memory.
What penalty applies for not giving allergen information properly?
Royal Decree 126/2015 has no penalty regime of its own; Act 17/2011 applies. Insufficient or defective labelling is a minor infringement, with a fine of up to 5,000 euros, and a serious one when it entails a risk to public health, with a fine of between 5,001 and 20,000 euros. Very serious infringements reach 600,000 euros and can lead to temporary closure of the establishment for up to five years (Arts. 51 and 52).