Maybe you watched a chef handle raw chicken and then your salad without washing their hands. Maybe there was a mouse. Maybe you spent the night after a takeaway curled around the toilet bowl, wondering if it was the curry. Any of these is worth reporting, and the system for doing it is more straightforward than most people assume.
The single most useful thing to know up front: complaints about food businesses go to the local authority — the council — for the area where the business actually trades. Not to the Food Standards Agency, which sets the rules and publishes the data but doesn't take individual complaints or send out inspectors itself. People email the FSA all the time and then wonder why nothing happens. The FSA will, at best, point you back to the right council. So save yourself a step.
Who you actually contact
The team you want is environmental health. Every council in England, Wales and Northern Ireland has one, and they're the people who carry out food hygiene inspections, respond to complaints, and take enforcement action when a place is genuinely dangerous. In Scotland the same work is done by environmental health officers within each council too, though the inspection scheme there reports results a little differently.
Finding the right council is the bit that trips people up, especially with chains and delivery kitchens. The rule is geography: it's the council covering the postcode where the food is prepared. A burger chain with forty branches isn't dealt with centrally — each branch answers to its own local council. A dark kitchen running three different brands off one industrial unit answers to whichever council that unit sits in, regardless of which app you ordered through.
On HygieneCheck, every business listing names the local authority that inspects it and links you to the council, so you don't have to guess. If you're not sure which premises you mean, search the ratings directory or find places near me and click through. Once you're on the council's site, look for "report a food safety problem", "food complaint" or "environmental health". Most have an online form now; some still prefer a phone call for anything urgent.
What's worth reporting
Plenty of things people put up with are actually reportable. You don't need proof that anyone got ill, and you don't need to be a customer — a passer-by who sees rats in a shop window can report it just as legitimately as someone who ate there.
- Dirty premises, equipment or utensils — grime on prep surfaces, filthy fryers, mould on walls near where food's handled.
- Pests: mice, rats, cockroaches, an unusual number of flies around open food.
- Poor staff hygiene — no handwashing, handling raw and ready-to-eat food with the same gloves, an obviously ill member of staff serving food.
- Food that was unfit to eat: out of date, mouldy, raw in the middle when it shouldn't be, or with something in it that has no business being there — a plaster, a shard of plastic, a hair.
- Suspected food poisoning traced to a particular meal.
Allergen problems deserve a special mention because they're more serious than people realise. If you asked whether a dish contained nuts and were told no, then reacted, that's not a misunderstanding to shrug off — it's a potential breach of allergen law, and councils take it seriously. Same goes for a menu that lists allergens incorrectly. Report it.
What environmental health can't help with is the stuff that's annoying but not a safety issue. Cold chips, a rude waiter, a bill you're disputing, portions that shrank — none of that is theirs. That's a matter for the business, or for trading standards if you think you've been actively misled about what you're buying. Knowing the difference saves everyone time.
What to write down
The quality of your report depends almost entirely on the detail you give, and memory fades fast. If you can, jot things down while they're fresh — that evening, not a week later.
Get the name and full address of the business pinned down. The trading name on the door sometimes differs from the registered name, so an address beats a name if you only have one. Note the date and rough time you were there. Then describe what you actually saw or experienced, as concretely as you can manage: "two mice ran across the floor behind the counter at about 8pm" lands very differently from "the place seemed dirty". Officers act on specifics.
If you were ill, record your symptoms and exactly when they started relative to eating. That timing genuinely matters, and I'll come back to why in a moment.
Hang on to evidence if it's safe to do so. A receipt proves you were there and when. Packaging carries batch codes and use-by dates. Photos are fair game — nobody can stop you photographing your own meal or a pest you've spotted. And if there's leftover food that made you ill, don't bin it. Bag it, seal it, stick it in the fridge or freezer, and tell the council you've kept it. They may want to test it, and a lab result is worth a hundred descriptions.
If you think food made you ill
Two things happen in parallel here, and people often do only one of them.
First, look after yourself. For most food poisoning the NHS advice is to rest, sip plenty of fluids, and stay off work or school until you've been free of symptoms for 48 hours — that last bit is the one people skip, and it's how outbreaks spread. Call NHS 111 or your GP if you can't keep fluids down, there's blood in your stool, symptoms drag on beyond a few days, or you're worried about a baby, an elderly relative or someone with a weak immune system.
Second — and separately — report it to the council, even after you've recovered. This is the part that protects other people. If your GP diagnoses something like salmonella, campylobacter or E. coli from a stool sample, that result is usually notified to the council automatically, but a confirmed lab case plus your account of where you ate is far stronger than either alone.
Now, that timing question. Most people blame the very last thing they ate, which is almost always wrong. Incubation periods vary wildly. Campylobacter — the most common culprit in the UK, often from undercooked chicken — typically takes two to five days to make you ill. So the chicken that floored you on Wednesday may well have been Sunday's roast, not Tuesday's leftovers. This is exactly why officers want every meal you remember from the days before, not just the obvious suspect. Don't self-diagnose the source; give them the timeline and let them work it out.
If you know other people who ate the same food and also fell ill, say so loudly. One report is a complaint. Several reports clustered around one business and one meal is the signal that flips a council from "noted" to "we're investigating an outbreak", and it can move quickly from there.
What the council does with it
Reports rarely get a dramatic same-day response, and that's not them ignoring you. Behind the scenes they assess what you've sent, cross-reference it against the premises' history, and decide on a proportionate response.
That might be an unannounced inspection — turning up without warning is half the point. It might mean taking food or environmental swabs for testing. It might be a quiet word and written advice if the issue is minor and the place is otherwise sound. For serious or repeated problems the options escalate: a hygiene improvement notice ordering specific fixes by a deadline, seizure of unsafe food, a prohibition that shuts the kitchen until it's safe, or prosecution in the worst cases. The hygiene rating you see on a listing can shift after an inspection too — see what the hygiene scores mean for how that number is built and why a place can drop from a 5 to a 2 overnight.
A few realities to set your expectations. Data protection means the council often can't tell you the detail of what they found or what they did — frustrating, but it's the same rule that stops them sharing details of complaints about you. You can usually ask to be told the general outcome. And you can report anonymously if you'd rather; it doesn't weaken the report, though leaving contact details lets an officer ring you for the one extra fact that cracks the case.
If you want to understand the wider machinery — how often places get inspected, what officers actually look at, and how the score is decided — the companion guide on how food hygiene inspections work goes deeper than there's room for here. To check a place before you eat, or to compare a few options on the same street, the ratings directory and the map are the quick way in.
One last thing worth saying plainly. Reporting can feel like grassing, like making a fuss over nothing. It isn't. The rating scheme and the complaints system both run on ordinary people noticing things and bothering to say something. A single report about mice or a dodgy allergen claim has, more than once, been the thing that stopped someone else getting seriously hurt. You can file the official version through the FSA's report a problem page, which routes you to the right council, or go straight to the council linked on the business's listing. Either way, five minutes of your evening is a fair trade.