The Allergen Review That Could Close Your Restaurant
I read hundreds of restaurant reviews looking for training failures. The allergen ones kept me up at night.
Eamonn Best
Founder, Lattify · March 14, 2026

A customer at a well-known London restaurant ordered a vegan dish, and what arrived had real cream cheese in it. She's lactose intolerant, and she didn't realise until she'd finished the whole thing.
A food safety incident, a potential lawsuit, and the kind of story that ends up in the Evening Standard - all because somewhere between the kitchen and the table, someone couldn't tell which version of the dish was vegan.
Five reviews I can't stop thinking about
I've been reading customer reviews across UK restaurants trying to understand where training actually breaks down, and allergen failures keep surfacing as the clearest pattern. Every example below is a different restaurant, and in every case the problem is the same: someone was asked a question about food safety and the person answering either didn't know, gave wrong information, or was relying on a system that was itself wrong.
At a well-known London restaurant, staff didn't appear to know what gluten actually was. When asked about allergens in a dish, they told the table it contained soya - the wrong allergen entirely. The group said that if anyone at their table had been at risk of anaphylaxis, they would have walked out.
At a national Italian chain, a customer discovered that the allergen book - the one staff are supposed to consult when someone asks about their food - didn't contain any information about what the gluten-free pasta was actually made from. If you had a corn allergy, the system your staff were trained to rely on had nothing to offer you.
At another location of the same chain, a customer wasn't told gluten-free pizzas were unavailable until after they'd already been seated and ordered drinks. Whether the staff didn't know or just didn't think to mention it, the result is the same: the customer only found out after they'd committed.
At another well-known London restaurant, a waiter came back to the table after taking the order because he was worried the online allergen information might be wrong. He checked, and the dish did contain milk - contradicting what the allergen menu said. He caught it, but only because he happened to doubt the system. A less careful waiter would have served it.
At a popular chicken chain, a customer with allergies described the ordering process as "very awkward" and said there were no clear directions for dealing with allergies at all. They said they personally felt like the staff didn't know what they were doing, and they left without eating because they didn't feel safe.
Five restaurants, five different ways for the same thing to go wrong.
What the law says
Natasha's Law came into force in 2021 and requires full ingredient labelling on food prepacked for direct sale, but the obligation to communicate allergen information on everything your kitchen makes and your front-of-house serves has been in the Food Information Regulations since 2014. If a customer has a reaction and you can't demonstrate that your staff were trained on allergens, you are legally exposed.
And "legally exposed" isn't abstract. Between 2014 and 2020, UK courts recorded seventy prosecutions related to food allergen failures, with sixty-eight convictions. Seven people received custodial sentences. Fines ranged from £50 to £93,000. Most of them are cases where the information was wrong, or the person serving didn't know, or the system they were supposed to rely on had gaps.
The FSA's own data paints a wider picture. In the 2024/25 period, allergens accounted for 38% of all food incident types reported to the agency, with labelling errors and cross-contamination as the main causes. In 2025, food businesses announced 141 product recalls, a 23% increase on 2024. Retailers and suppliers issued 85 allergen alerts - the equivalent of one every four days. And according to research published in the BMJ, 59% of food-related anaphylaxis hospitalisations in the UK are attributed to catering establishments. Restaurants, cafes, and takeaways.
The law doesn't ask whether you meant to get it wrong. It asks whether you had a system, whether your staff were trained on it, and whether that system was accurate.
Why it keeps happening
The allergen information usually exists somewhere - a folder in the office, a laminated sheet behind the bar, an allergen matrix pinned to the wall next to the fire extinguisher. Somebody wrote it all down at some point. But that information lives in a binder, and the person taking the order at table six on a Friday night has no idea what's in it. It's the same root cause behind most informal training failures - the knowledge exists somewhere in the building, it just never reaches the person who needs it at the moment they need it.
They were shown it once, on day one, somewhere between the fire exit tour and the explanation of which bin is for recycling. By Tuesday they've forgotten which dishes contain sesame, and by Friday they're guessing.
And the guessing isn't always obvious. Sometimes it looks like confidence. A server who's been there three months might say "yeah, that's fine" to an allergen question because they're 90% sure, and because saying "I don't know, let me check" feels like admitting they haven't been paying attention. The customer hears certainty. What they're actually getting is someone's best guess.
Then there's the supply chain problem that nobody talks about. Your head chef builds an allergen matrix in January. In March, your supplier swaps the brand of cooking oil and the new one contains soya. Nobody updates the matrix. Your staff are now consulting a document that is factually wrong, and they have no way of knowing. The waiter who went back to check the online allergen info and found it contradicted the dish - he caught it by instinct. The system itself had failed, and the only thing standing between the customer and a reaction was one server who happened to second-guess what he'd been told.
One employee at a national Italian chain left a review on Indeed that really stuck with me: "Hardly any training. I had gotten shouted at because the knowledge of the meals wasn't there - but how is anyone supposed to know without training?"
That person wanted to get it right. They just never got what they needed to do it. And the system they were told to rely on - the allergen book sitting on the counter - was itself missing key information. The gluten-free pasta wasn't even listed. So even the staff who did check the book, who did try to follow the process, were working from incomplete information. The problem is upstream: nobody documented it properly in the first place, and nobody updates it when things change.
The wider pattern
The allergen failures are the most dangerous version of this, but the same gap shows up everywhere in less life-threatening ways. At one restaurant, a customer's risotto arrived made with plain basmati rice - risotto in name only. At another, a waitress tried to take an order for two calzones and came back to say they didn't have them, even though they were on the menu. At a third, a waiter was asked about set menus, said they didn't exist, and then sheepishly produced one when the customer pushed him on it. Staff at a fourth were described by a reviewer as "nice but bumbling amateurs" - willing, clearly, but visibly untrained.
The fix
Every dish needs its allergen information documented somewhere your team can actually get to during service - on their phone, at the table, while the customer is sitting there asking. Every new starter should go through it before they take their first order, and when a recipe changes or a supplier swaps an ingredient, the information needs to update with it. When a customer asks "is this safe for me to eat," your staff shouldn't have to guess.
The laminated sheet in the office can't solve this because nobody updates it when the supplier changes, and nobody consults it mid-service anyway. I built Lattify so your head chef can walk through each dish on camera - ingredients, allergens, substitutions - and every server gets a guide they can pull up on their phone while the customer is still at the table. When a supplier swaps an ingredient, you update the guide once and every server has the current information on their next shift.
Trust
Someone with a serious allergy sat down at one of your tables today, asked a question, and trusted the answer. Whether your staff had what they needed to get it right is a different question entirely.
The customer reviews in this article are drawn from public reviews on Google, TripAdvisor, and restaurant review sites for major UK hospitality chains. The employee quote is from Indeed. All chains have been anonymised.
If any of this sounded familiar, we built Lattify for exactly this problem.
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