The Eggs You Can't See

On caged hens, the restaurant visibility gap, and why I wrote to my MP about eggs.

A hen wearing spectacles and writing a letter with a quill at a wooden desk.

A few weeks ago I wrote a letter to my MP about eggs. More precisely, about hens kept in cages, and about a government commitment I wanted to make sure didn’t quietly expire. I’ll share the letter at the end. But to explain why I wrote it, I need to start somewhere more mundane: a cafe, a menu, and the realisation that I had no idea what I was ordering.

I like eggs. A lot, actually. A good shakshuka or a plate of slightly underdone scrambled eggs are among the more reliable pleasures in life, and I have no interest in making the case that people should stop eating them. This post is not that. It’s about something narrower: the difference between how eggs are produced, and the fact that for roughly a third of the eggs we consume, that difference is completely invisible to us at the point of choice.

At a supermarket, egg cartons tell you a lot. Free range. Barn. Organic. Caged. You can stand in the aisle and make a choice that reflects your values, or at least your willingness and ability to pay a bit more. That infrastructure exists because consumer behaviour shifted first, and regulation followed.

There’s also more granularity than most people realise. Every egg produced under the British Lion scheme, which covers over 90% of UK eggs, is stamped with a small red lion and a code. The code tells you the farming method, the country of origin, and the specific farm where it was laid. Type the farm ID into the British Lion website and you can see exactly where your eggs came from. That level of traceability is genuinely impressive and not something Brits should take for granted.

Walk into a restaurant, cafe, or pub, and all of that infrastructure disappears. The eggs in your omelette, your shakshuka, your caesar dressing: you have no idea how those hens were kept. There is no label. There is no requirement for one. You can ask, and sometimes staff will know, but often they won’t, and the question has a faint social awkwardness to it that nudges most people toward not bothering.

This isn’t a personal failing. It’s a structural gap. Consumer choice only functions where information exists. At the supermarket it does; at the restaurant it doesn’t.

Before going further, a distinction worth making explicitly. The argument here is not against eggs, and it is not against small-scale or high-welfare farming. There are farms where hens live decent lives by any reasonable standard. The target is something more specific: industrial caged systems, which account for a substantial share of egg production and which involve conditions that are hard to defend once you look at them clearly.

Conventional battery cages were banned in the UK and EU in 2012, following a directive that had been in place since 1999. The enriched cages that replaced them offer more space, roughly the equivalent of an A4 sheet of paper plus a postcard per bird, along with a perch, a small scratch mat, and a nest box. That is a genuine improvement on what came before. It is also, by most measures, still not much of a life. Hens are social animals with a reasonably complex behavioural repertoire. They forage. They dust-bathe. They establish hierarchies. In enriched cages, most of that is simply not possible: space is too constrained, and the environment too bare. The frustration of suppressed natural behaviour produces measurable stress responses; in crowded conditions it leads to feather-pecking, which the industry manages through beak-trimming. Around 21% of UK hens are still kept in enriched cages today.

You don’t need to believe hens experience the world the way humans do for this to be a problem. You just need to accept that animals capable of experiencing frustration and pain are worth some consideration, a bar that most people, if asked directly, would clear without much difficulty.

The UK government has, to its credit, already said it agrees. The Animal Welfare Strategy published in December 2025 commits explicitly to ending the use of cages for hens and crates for pigs. The minister introducing the strategy in Parliament framed it as delivering on Labour’s manifesto commitment to give farm animals greater freedom and dignity. Defra has since opened a consultation proposing a formal ban on enriched colony cages, with a target date of 2032.

The direction is right. The question is whether the commitment survives contact with industry lobbying and subsequent governments. The history here is not reassuring: the 2012 ban on battery cages was a genuine step forward, but the industry’s response was a shift to enriched cages, which are better but not dramatically so. A promise that resolves into something similarly marginal would not be progress in any meaningful sense.

So what can you actually do? I think there are three levels, and they work better together than any one does alone.

The most straightforward is what you buy at the supermarket. If you eat eggs, organic is worth understanding as a distinct category. Cage-free and free range mean the hens aren’t in cages, which is a meaningful floor. Organic means cage-free plus outdoor access plus a prohibition on most synthetic inputs, and sits at the top of the mainstream welfare hierarchy.

I’ll be honest: I am generally skeptical of the organic label. In crop farming, I associate it with poor land use efficiency and a reflexive opposition to genetic modification that I think is more ideological than scientific. These are real objections and I hold them. But they apply much less cleanly to egg production, where there is no crop yield to optimise and no GM technology being kept out. The meaningful variables are stocking density, outdoor access, and how the hens are kept, and on those measures, organic does better than the alternatives. This is one of those cases where a prior I normally trust points me in the wrong direction, and it seemed worth flagging rather than just quietly recommending organic as if I had no reservations about the label.

The price premium is real. Organic eggs cost roughly twice as much as standard caged, but eggs are a small enough part of most grocery bills that the absolute difference is modest. We buy twelve Waitrose organic eggs every couple of weeks and it doesn’t register as a budget decision. That won’t be true for everyone, and there are weeks or trips where you’re not in control of where things come from. I’m writing this from Italy, where the options in the corner shop are what they are. Do what you can when you can.

The less obvious lever is restaurants, cafes, and the derived egg products most people don’t think about: the mayonnaise in your sandwich, the pasta in the supermarket, the quiche from the deli counter. Industry data puts foodservice at around 20% of UK egg consumption and food manufacturing at another 16%, so more than a third of eggs eaten in this country move through channels where welfare labelling simply doesn’t exist. For restaurants specifically, next time you’re somewhere that does a lot of eggs, ask whether they use free range or organic. Don’t make a scene about it; just ask. If they do, tell them you appreciate it and suggest they flag it on the menu or their website if they haven’t already. It’s a genuine selling point. If they don’t, mention that you’d be more likely to come back if they switched, and that you’d pay more for it if you’re able to. Restaurants operate on tight margins and respond to customer signals. A handful of people making the same point in the same week registers in a way that abstract consumer preference surveys do not.

The third lever is political, and it’s why I wrote to my MP.

Individual purchasing decisions matter at the margin, but they don’t close the restaurant visibility gap. That requires either labelling regulation or procurement standards that operate upstream of the consumer entirely. The Animal Welfare Strategy and the Defra consultation are the right instruments. They need to hold. They need to apply to food service as well as retail. And they need MPs to hear from constituents that this matters, because the industry is already pushing back hard.

Emily Thornberry is my MP. She has been in Parliament for twenty years and has a direct line to Defra ministers. I wrote asking her to push on the question of whether the food service sector will be included in any cage ban, because a ban that applies to supermarkets but not to restaurants doesn’t close the visibility gap, it just moves it.

Writing to an MP is a low-effort starting point, not a guaranteed outcome. There’s no way to know whether the letter gets read, whether it gets passed on, or whether it contributes in any traceable way to a policy decision. That’s just the reality of how political pressure works: it’s diffuse, slow, and impossible to attribute. But the restaurant visibility gap is a policy problem, and policy problems need political pressure to move. Writing the letter took thirty minutes. Asking a restaurant about their eggs takes thirty seconds. Neither of these is a sacrifice. They’re just two small ways of moving in the direction of something that seems, on reflection, fairly hard to argue against.

The Letter

Dear Emily Thornberry,

I am writing as a constituent about the Animal Welfare Strategy published in December 2025, specifically the commitment to end the use of cages for laying hens.

I welcome the strategy and the government's stated goal of giving farm animals greater freedom and dignity. My reason for writing is to ask whether you would be willing to raise with the Secretary of State for Environment, Food and Rural Affairs the question of what the implementation timeline looks like, and what enforcement mechanisms will be in place to ensure the commitment translates into legislation.

I ask partly because the history here gives some reason for caution. The UK banned battery cages in 2012, and the response from the industry was a shift to enriched cages which are better but not substantially so. A commitment to end cages entirely is meaningfully stronger, but its value depends entirely on whether it comes with a firm legal timeline and is not quietly diluted during the consultation process.

I also ask because the commitment as currently stated appears to apply primarily to retail egg production, and I would be grateful to know whether the government intends to extend requirements to food service (restaurants, cafes, and institutional catering) where consumers currently have no visibility into the welfare standards of the eggs they are served. A ban that applies at the supermarket but not at the cafe resolves only part of the problem.

I recognise these are detailed policy questions rather than matters of broad principle, but they are the questions on which the practical value of the strategy will hinge. Any update you are able to share, or any willingness to put these questions to the Secretary of State, would be much appreciated.

Yours sincerely,
Tyler Martin