Essay14 May 2026 · Mild · History

From half of British beer to half a percent — what happened to mild

How Britain's everyday beer became a rarity — and why Mild May is trying to bring it back.

In 1959, mild was still about half the beer Britain drank.

By 2011 it was 0.5%.

No other British beer style has fallen that far. None has come back from it either — at least, not yet. May is CAMRA Mild Month, and the campaign has been trying since 1977. The collapse was never really about taste. It was about tax, war, class, slops, and a word that promised the wrong thing.

This is the story of how all five worked.

The word lied from the beginning

"Mild" originally meant young. Fresh from the cask. The opposite of "keeping" or "stale" — beers deliberately aged for months, sometimes years, in vats. That was the only thing the word told a 17th- or 18th-century drinker. Not strength, not colour, not bitterness. Just freshness.

The historian Ron Pattinson has spent two decades unwinding the assumptions Britain layered onto the term. As he put it in BeerAdvocate in 2011:

"Mild: Isn't that the dark, low-gravity, lightly hopped stuff that Welsh coalminers drink? An unassuming and unexciting session ale that's about as fashionable as a polka-dotted, pink kipper tie. But the reality is much more complicated. And much more fascinating." — Ron Pattinson, A Short History of Mild, BeerAdvocate, February 2011

Eighteenth-century mild ales routinely had original gravities of 1.060 to 1.070 — what we'd call strong by today's standards. Some were higher. The category covered ales of every colour. Mild Brown Ale, brewed from 100 percent brown malt, would have tasted like a lightly-hopped London Porter. None of it resembled the modern pour.

By 1830 the base-level mild — labelled X Ale in brewers' books — was around 1.070 OG, which made it stronger than the Pale Ales of the day. Bitter, in the form modern drinkers know, didn't yet exist.

How mild got dark

Two things changed the picture in the 1880s. The Free Mash Tun Act let brewers add sugar to the grist for the first time, and dark sugars let them dial colour with precision. Around the same time, the pewter mug gave way to clear glass, and a Victorian pub-goer could finally see what colour his pint actually was. Brewers responded. By the end of the 19th century, mild had drifted to a dark amber — paler than today's Dark Mild, but visibly darker than the Pale Ale on the same bar.

Pattinson's theory for the further darkening that followed is unsentimental: "A darker colour might be perceived as a stronger beer." As gravities fell, brewers compensated with the appearance of strength.

Two World Wars then did the rest of the work. WWI grain shortages capped the average OG of all British beer at 1.030. Some X Ales dropped to 1.011 — barely beer. After the restrictions lifted, mild bounced back to around 1.043 by the mid-1920s. Then in 1931 a punitive beer-tax hike, Pattinson notes, was "almost as dramatic as WWI". Gravities collapsed again, to 1.035–1.036. WWII shortages chipped a further few points away.

By 1945, mild was 1.027 to 1.032 OG — around 3 to 3.5% ABV. The dark, low-strength style modern drinkers recognise had taken its final shape. Pattinson is precise about when this happened: "The Dark Mild that we know today only really dates back to the 1930s."

Every colour, every strength

Martyn Cornell's Beer: The Story of the Pint (2003) treats mild as the most shape-shifting style in British brewing, and Pattinson's verdict is harder still:

"Over the years, Mild has been every colour, from golden to black, had ABVs as low as 1.1 percent and as high as 10 percent. No other style has transformed itself as often or as radically." — Ron Pattinson, BeerAdvocate, 2011

So when someone tells you mild is "a traditional style", ask them which tradition. The 1830 pale-malt 7% X Ale, the 1900 dark-amber 5% session, the 1945 austerity 3% house pour, and the 1970s near-extinction are four different products under one name. Cornell observes, drily, that Fuller's Chiswick Bitter — 3.5% ABV, floral English hops — is probably the closest living equivalent of what most 19th-century drinkers actually meant by mild. It just isn't called one.

The collapse: tax, class, and slops

Mild peaked in the interwar years. Through the 1920s and 1930s it was the working man's session pint, the volume seller in industrial Britain, and — particularly in the North and Midlands — the default tap on every bar. Bathams (Black Country, 1877), Holden's (Dudley, 1915) and Banks's (Wolverhampton, 1875) all built their estates around it.

Then, gradually and then suddenly, mild stopped being the default.

The Times of London ran a piece in 1958 describing the social shift in plain terms: working men were adopting bitter to claim "status parity with management". Mild had become the drink you ordered to mark yourself as someone who hadn't moved up. Pale Bitter was aspirational. Lager arrived in the 1960s and finished the job from the other end.

Pattinson identifies 1959 as the last year mild was still roughly half of all British beer. By the mid-1970s it had effectively vanished from London, Scotland and the North-East. The strongholds — the Black Country, parts of Manchester, parts of Wales — held the line.

And then there were the slops. The whispered accusation that "all the slops were going back into the mild barrel" — that what you got in a pint of dark mild was as much returned beer from the drip tray as the brewer's intention — circulated for decades. Pattinson cites it as actively damaging the style. The dark colour didn't hide adulteration, but it could be made to look like it might. Reputation, once dented, didn't recover.

By 2011 the British Beer & Pub Association put mild's share of UK beer sales at 0.5%. Half of British beer to half a percent in 52 years.

Why Mild Month exists

CAMRA's mild campaign began in December 1974, when a member called Tim Beswick wrote to the newsletter What's Brewing arguing that mild wasn't getting the attention it deserved. A month later, David Hall of CAMRA's South Manchester branch followed up with a piece accusing his fellow members — Londoners especially — of being "blinkered":

"To those trying an unfamiliar brew, and to those organising future beer exhibitions, the message must be don't neglect the mild." — David Hall, What's Brewing, January 1975

In January 1977, CAMRA formally launched the campaign that would become Mild Month. The man running it was Joe Goodwin, a National Executive member who would later become Chairman and who died in 1980, aged 31. Goodwin's framing, recovered by Boak & Bailey, captures something interesting:

"CAMRA exists to preserve choice. Since mild ales represent a significant portion of the range of real ales available in this country and since several milds are under threat of extinction, this has become a vital national campaign… As a campaign, we're in danger of becoming too frequently associated with the promotion of over-priced, high-gravity beers. It's about time we did something positive to change that image." — Joe Goodwin, What's Brewing, January 1977

The complaint Goodwin was answering — that real-ale advocacy had become an excuse for promoting "over-priced, high-gravity beers" — is now the exact charge levelled at craft.

The fork, today

Mild now lives in two distinct camps. Both are honest descendants of the same word.

The stalwarts never stopped. Bathams' tied pubs in the Black Country still pour Mild Ale at 3.5%. Holden's and Banks's are still on tap across the West Midlands. Tring's Mansion Mild has been a Hertfordshire core beer for more than fifteen years — the brewery describes it as "a smooth, delicious beer with notes of biscuit and sweet caramel". A handful of others — Sambrook's, Five Points, Bristol Beer Factory — kept the post-war session-strength style alive as a deliberate act.

The revisionists are a different proposition. They've gone back past 1945 and pulled milder ales out of the 19th-century brewing record, where strength was the norm. Dark Star's Victorian Ruby Mild (2009) launched at 6%. Partizan's X Ale, brewed since 2013, is 6.5% — and tellingly, the brewery rebranded away from the word "mild" because, as they put it, "no one wanted to buy mild". They put a dinosaur on the label instead. Sales went up. Buxton's Ring Your Mother hit 9.5%. Cornell himself co-produces Bert's Dark Ale at Poppyland in Norfolk; he reports it "actually sells quite well".

Colin Stronge, who brewed Buxton's mild, is honest about the constraint:

"Most modern takes on the style are pretty bland. I think people are just too in love with hop-led beers for the time being for them to really become the go-to style." — Colin Stronge, Buxton Brewery, via All About Beer

Fuller's John Keeling, who oversaw the brewery's Hock dark mild until its retirement in 2010, draws the boundary on the other side:

"Bitter becomes an ESB when it becomes too strong, and mild becomes a strong brown ale." — John Keeling, formerly Head Brewer at Fuller's

That tension is the post-2010 mild revival, in one sentence. The traditionalists want the 3.5% Black Country session pint. The revisionists want the 1830 X Ale. Both call themselves mild. Goodwin's 1977 complaint about "over-priced, high-gravity" beer comes round again, this time aimed at a style that's barely on the radar.

Where to actually drink one this May

The Black Country remains the easiest place to find a session mild without thinking about it: any Bathams or Holden's house. Liverpool CAMRA flag two permanent-mild pubs in their city — The Dispensary, pouring Fernandez Malt Shovel Mild, and The Lion Tavern, pouring Rock the Boat Lion Mild — both worth a trip on their own merits, and both pouring mild every week of the year, not just May.

Elsewhere it's a tap-by-tap question. CAMRA branches will be organising mild-themed walks across the country through the month. PINtPOINT's style filter lists venues currently pouring a mild in real time, with a freshness dot showing how recently each line was confirmed — useful precisely because a mild tap rarely stays for a fortnight.

The piece skips a quieter lineage worth naming. Most of the surviving session-strength milds are dark, but pale mild never disappeared — Timothy Taylor's still brew theirs, and Cornell points to the same brewery's 3.5% Golden Best as the closest modern equivalent of what nineteenth-century drinkers actually meant by mild. Their head brewer's line on the difference between Golden Best and the brewery's Dark Mild: "the only difference is caramel." Mild isn't only dark.

What we're not claiming: that mild is back. It isn't. The 0.5% number is from 2011 and the trend hasn't reversed since. The campaign is fifty years old this year and the style is rarer than when it started.

What's true: it's still being made, by people who care about it, in versions that range from quiet to assertive. The argument inside the camp is loud and interesting. The pint, where you find it, drinks well.

Mild's enemies were never taste. They were tax, two wars, a class shift, a slops rumour, and a word that promised the wrong thing. Drink one this May — if you can find one.

Full disclosure: independent editorial. We have no commercial relationship with any brewery named here. PINtPOINT's style filter is part of the free app; nothing in this piece is paid placement or sponsored.

Frequently asked questions

What is mild ale?

A low-hopped, malt-forward British ale, today most commonly dark and 3–3.5% ABV with notes of caramel, dark fruit, chocolate and coffee. The word originally meant young or fresh — as opposed to aged — and through the 18th and 19th centuries mild ales were often strong (1.060–1.100 OG). The dark, low-strength version we recognise today only crystallised in the 1930s.

Why is mild so rare in the UK today?

Mild was about half of all UK beer sales as late as 1959, and 0.5% by 2011 (BBPA). The collapse was driven by two world wars cutting gravities, a 1931 beer-tax shock, post-war class signalling (working men adopting bitter to match management), and the rumour — sometimes founded — of bar slops being tipped back into the dark mild barrel where the colour would hide them.

Which UK breweries still make mild?

Black Country stalwarts Bathams, Holden's and Banks's never stopped. Modern session-strength milds come from Tring (Mansion Mild), Sambrook's (Brunel), Five Points (XX Mild), Rivington, Bristol Beer Factory and others. A separate craft fork is brewing historically-accurate strong milds at 6–10% ABV: Dark Star's Victorian Ruby Mild, The Kernel, Partizan's X Ale, Buxton's Ring Your Mother, Mad Hatter, Left Handed Giant, and Poppyland's Bert's Dark Ale (co-produced by beer historian Martyn Cornell).

What is CAMRA Mild Month?

An annual May campaign run by the Campaign for Real Ale to celebrate and preserve mild ale. It began with a December 1974 letter from Tim Beswick in CAMRA's newsletter What's Brewing, and was formally launched in January 1977 by Joe Goodwin. Pubs are asked to keep at least one mild on the bar through May; local branches organise mild-themed pub walks.

Where can I drink mild this May?

Liverpool's two permanent-mild benchmarks are The Dispensary (Fernandez Malt Shovel Mild) and The Lion Tavern (Rock the Boat Lion Mild). Across the Black Country, Bathams' tied estate and Holden's pubs pour mild year-round. PINtPOINT's style filter lists venues currently pouring a mild in real time — the data updates as tap lines change, and a freshness dot tells you how recently each one was confirmed.

What's the difference between mild and bitter?

In practice today: bitter is more heavily hopped, drier, and typically pale-to-amber; mild is lighter on hops, sweeter, fuller-bodied, and most commonly dark. Both are session-strength. Historically the distinction was sharper — bitter was always heavily hopped, mild was simply young ale (the term originally said nothing about hopping or strength). The styles converged in the 20th century around their post-war gravities and only really diverged again on hopping rate and FG.

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