March Mildness 2026: The Dark Mild Passport Event You Need to Know About

March Madness fills out brackets. March Mildness 2026 fills pint glasses. For the third year running, Forest & Main Brewing in Ambler has organized one of the coolest beer events in the region — a month-long passport crawl celebrating one of the most underrated styles in the entire craft beer world: the dark mild. This year, 30 breweries across Pennsylvania, New Jersey, and New York are pouring their own versions all month long. Here is everything you need to know before you grab your passport and get stamped.

Where It All Came From: Machine House and the Origin of March Mildness

Before we get into the passport logistics, the backstory earns a moment. March Mildness did not start in Philly. It started in Seattle.

Bill Arnott is a UK-born brewer who founded Machine House Brewery in Seattle’s Georgetown neighborhood. His flagship beer from day one was a dark mild — a 3.7% ABV, cask-conditioned ale that became a local cult favorite. Arnott describes it as a beer he wanted to make because he knew it could be great and unlike anything else around at the time. He was right. Machine House’s dark mild now has nearly 2,800 ratings on Untappd and earns praise as one of the best examples of the style in American brewing.

Arnott started March Mildness as a way to champion the style he loved most. The original format was simple: visit participating bars, drink Machine House dark mild, get your punchcard stamped, earn prizes. It grew every year in Seattle, earning enough attention that brewers across the country started paying attention.

During the pandemic, the team at Forest & Main — owners Gerard Olson, Daniel Endicott, and Brian DeAngelo — reached out to Arnott directly to ask permission to bring the concept to the Philly area. Arnott said yes. Forest & Main ran their first March Mildness in 2021 with takeout beer. That small start grew into what it is today: a tristate event with 30 participating breweries and a legitimate following of people who love this style and will go out of their way for it.

What Is Dark Mild, and Why Does It Keep Getting Overlooked?

Here is the honest truth about dark mild: it does not sell well. That’s not a secret. Brewers who make it know it. Forest & Main co-owner Gerard Olson has said openly that mild is not the most popular beer style but that a lot of brewers and industry people genuinely love it. There is something quietly defiant about that. These are people who make and drink something excellent while the market chases other things.

So what is it? Dark mild is a classic British ale style that typically runs 3–4% ABV. The word “mild” does not describe the flavor — it describes the hop character, which stays very low. The darkness comes from toasted and caramelized malts, not from higher temperature roasted grain the way a stout works. That distinction makes a real difference in the glass. Where a stout delivers coffee and char, a dark mild delivers chocolate, toffee, light dried fruit, and a soft, almost understated sweetness. The finish is clean and quick. The mouthfeel runs medium-light with low carbonation. It tastes like more beer than its alcohol content suggests.

That is actually the hardest thing to pull off in brewing: full flavor at low strength. Dark mild demands precise malt selection and careful fermentation. There is no bitterness to hide behind, no heavy hops to cover up flaws, and no high alcohol to smooth rough edges. When a brewer gets it right, you have a beer that disappears from your glass before you realize how much you enjoyed it.

That drinkability is the whole point. Second District Brewing head brewer Benjamin Potts put it well: brewers love milds because they are simple, but when done right, they are full-flavored, really delicious, and great for a session at the pub.

How the Mild Passport Works

Picking up a passport is easy. Visit any participating brewery during March and ask for one — they keep a stack on the bar. Order a pint of mild and get your passport stamped. One stamp per brewery. That’s it.

Collect as many stamps as you can throughout the month by visiting different participating breweries. Each stamp represents one raffle ticket. Then bring your stamped passport to Forest & Main’s brewery at 241 N. Main St. in Ambler on April 4th for the closing raffle party. Every stamp in your passport earns you one ticket. More breweries visited means more chances to win.

A few things worth knowing going in. The passport is designed to be a tour of the region, not a race. Some people take it seriously and hit every brewery they can. Others grab a stamp at two or three spots they already love and enjoy the ride. Both approaches are fine. The competitive element is, as Olson puts it, “just tongue-in-cheek and laid back.” The real reward is 30 different interpretations of the same style brewed by people who genuinely care about it.

We Have Dark Milds

We have beers that are on the March Mildness 2026 Passport, which means we have plenty of milds all month long and are just a short drive away. Stop in, grab a few 4-packs, and join in on the style appreciation with us. If this is your first mild, we encourage you to let us know your thoughts. If you are already a mild fanatic and you’re deep into your passport crawl, we are glad to be one of your honorary stops.

We have Human Robot, Brewery Ars, Bonn Place, and Forest & Main!

A Few Breweries Worth Hitting on Your Passport Crawl

With 30 breweries across PA, NJ, and NY, the passport can take you in a lot of directions. Here are a few worth prioritizing if you have not been.

Forest & Main (Ambler, PA) — The organizers of the whole event. Their taproom occupies a spot in the heart of Ambler and pours through hand-pump engines, the same way British pubs serve real ale. Their dark mild called, simply, Mild runs 3.2% ABV with a chocolatey, malt-forward, roasty character. This is the home base for March Mildness and worth visiting if you have not yet. They also collaborated with Human Robot Beer this year on a pale mild built on Maris Otter and Amber Malt with East Kent Goldings and Fuggles hops.

Bonn Place Brewing (Bethlehem, PA) — This one is close to home and should be your first stop if you haven’t been. Bonn Place operates out of a small corner taproom on the Southside of Bethlehem, and it is exactly the kind of place March Mildness was designed to celebrate. Owner and brewer Sam Masotto has been brewing English-style ales since the brewery opened in 2016, and he does it better than almost anyone in the region. Their dark mild, Nemo, won a bronze medal at the Great American Beer Festival in 2017 and gets served on nitro. It is 3.8% ABV and tastes like a more complete beer than most things twice its strength. The taproom feels like a real pub — small, warm, genuinely community-oriented. Masotto describes the vibe as their living room, and you’ll feel that the moment you walk in.

The full list of participating breweries runs across the tristate area. Check Forest & Main’s Instagram or website for the complete passport map.

Why This Event Matters Beyond the Stamps

March Mildness is not primarily a competition. The brewing community treats it as a celebration of something they believe in and a chance to collaborate with breweries they respect. Potts from Second District said it best: it is about camaraderie between breweries and friends, getting together around a like-minded recipe, and celebrating the beer community.

That spirit shows in how the event functions. Prizes come from the participating breweries themselves. Raffle entries reflect real visits, not purchases or signups. Nobody profits significantly from this. It exists because people who make and love this style want more people to find it.

Dark mild will probably never be a top seller. It does not trend. It does not have bold marketing behind it. It just tastes really good when someone who cares about it brews it well, and that is a worthy reason to spend a month seeking it out.

As always, cheers.