Lambic: Forget Everything You Knew About Beer
December 11, 2025
Spontaneously fermented wheat beer, aged in wooden barrels – you know you want to try a lambic! That description is true, but it’s lacking the complexities that make up this traditional Belgian beer.
Using only that definition is a disservice to the brewers that have worked to perfect this style over the centuries. And also a disservice to the people that appreciate a well-crafted, time-honored beverage.
Let’s give that simple lambic definition the character it deserves, shall we?
What is a Lambic?
Like many historical and traditional beers, defining a lambic is a bit convoluted. Some opinions mention that location is of utmost importance, meaning that if it is called a lambic, then it must be brewed in a specific location. Specifically Brussels, Belgium, including southwest of Brussels, and the Zenne River Valley.
Others disagree and mention it’s more important to claim a lambic as a lambic through the traditional brewing processes and practices of a lambic.
Both are important and play an integral role in defining a lambic style of beer.
Let’s start with the process. Throw out everything you know about best practices in brewing. Instead of a traditional mashing, fresh hops, a 60-minute boil, and a controlled environment for fermenting, lambics require a robust mash, aged hops, a three or four hour boil, and spontaneous fermentation exposing the wort to open air native to the Zenne Valley.
Lambics normally require a set proportion of malts: around 30 to 40 percent unmalted wheat with the remaining being a base malt like barley. Lambics are then aged for one to three years.
Are gueuzes, krieks, and framboises lambics?
This entire process, along with the region, is what gives a lambic its unique flavor profile, highlighting funky, earthy, hay-like flavors, along with a citrusy, lemon tartness that can only come from the natural ingredients in and around Brussels. But a lambic isn’t just a lambic. There are variations based on unblended styles, blending, and added fruits.
History of the Lambic
Sounds refreshingly tart, right? But, how did this style get its start? More than likely the style of spontaneously fermenting beer has been around since the dawn of people. The science behind it may not have been understood, but the resulting beverage was.
Fast forward thousands of years to sometime around the 15th and 16th centuries and that science became a thing when it came to crafting beer. They may not have understood all there was to know about the brewing process then, but fortunately for us today, those Belgian brewers understood enough.
Tax collectors also had a say as to how these beers should be brewed, dictating a ratio of barley to wheat based on crop harvests. This style, often referred to as gueuze, later known as lambics, would become well known in Brussels and the surrounding area. In fact, if you wanted to brew a lambic, it had to be brewed within this region because many believed you could only get the unique qualities that comprise a lambic through the microflora that surrounded Brussels.
At this time in Belgium, faro, a sweetened lambic beer, was also widely available in the Brussels region up until the early 1900s. Today, you’ll be hard pressed to find this style, even in Belgium.
Lambic of Today
Lambic shifted with the times and almost became nonexistent due to lack of demand and change in beer styles, especially when the brown beers gained popularity. Think London Porters. World War II had an impact on production and desire, as well, causing a huge decline in traditional lambic breweries. But over time, brewers came to the realization that this ancient style needed to be kept alive. That and consumers began coming back to the more traditional styles of the region.
Recognizing all of the above, lambic brewers and blenders formed HORAL (an acronym for Hoge Raad voor Ambachtelijke Lambikbieren – High Council for Traditional Lambic Beers) in 1997. Their stated goals are “to promote the craft lambic beers and related products, paying attention to the entire process of brewing to serving lambic; denouncing irregularities concerning artisanal lambic beers and related products; take steps to protect the traditional lambic beers and related products.” (https://www.lambic.info/HORAL)
Now, even in the U.S., brewers are crafting lambics. Or should we say, their interpretation of a lambic, since a true lambic can only be brewed in the Brussels area and the Senne River Valley. To respect this, when brewers outside of that region follow the lambic brewing process, they will call it something else entirely, the likes of: Méthode Traditionnelle, Coolship Resurgam, or American Spontaneous Beer, to name a few examples.
These may not be lambics in the truest sense of the style, but they are brewed using similar time-honored techniques, respecting the origins of which they came from.
A lambic is an experience.
Be spontaneous and head to Belgium because that is where you should experience a lambic. But if you can’t make it there, enjoying one elsewhere is still a rewarding experience. With its complex and unique flavor profiles, a lambic isn’t just a drink; it brings Belgium to your glass – no passport required.
MMC Knows Malts
Quality malts from Malteurop will bring out the complex and unique flavor profiles we expect from lambic style beers. Whatever malts you need for your recipes, here at MMC they’re all exceptional. So when you’re ready to embark upon this traditional, time-honored brew, we’re ready for you!
“Malt should not be something that somebody has to worry about. That’s our job as maltsters. We produce something consistent and to specification every time and take that off of your plate.” (Joel Grosser, Director of Operations for North America)
Premium grains from field to flavor.
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About Malteurop Malting Company (MMC
Malteurop Malting Company (MMC) is based in North America—specializing in growing and producing quality malts for the beer, whiskey, and food processing industries.
With local farms and Malthouses spread across the United States, Canada, and Mexico, Malteurop’s commitment to excellence is fully ingrained into every batch it produces, ensuring businesses of any size can create the finest beverages and food products on the planet.
Visit www.malteuropmaltingco.com to learn how we can support your malting needs.
Contact us at customersuccess@malteurop.com or (844) 546-MALT (6258) for questions or to place your order.
Malting is our passion. Quality is our promise.
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