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De Proef logoDe Proef Brouwerij
Lochristi, Belgium

In 1996 highly regarded brewing engineer and professor, Dirk Naudts, created De Proef Brouwerij in the village of Lochristi, near the historic city of Gent, Belgium. The ultra-scientific brewery blends modern equipment and technologies with traditional brewing methods. Beers are produced on one of three brewing systems, matched to volume and desired flavor profile. It’s like a Wonka for beer! Michael Jackson once described De Proef as "the ultimate toy for the aspiring home brewer."

beers currently available

Bouket Farmhouse Ale label


Bouket Farmhouse Ale

De Proef Collaboration With Trillium Brewing

Created in 2007, the annual De Proef Brewmaster’s Collaboration series has featured some of the most notable brewers and breweries in the United States. It has been consistently noted for both quality and creativity and was a forerunner to the numerous collaborations which now dot the brewing landscape.

For the 10th anniversary collaboration, we have selected the newest and perhaps smallest brewer to ever participate in this series - Jean-Claude Tetreault of Trillium Brewing Company in Boston.

In only its third year of operation, Trillium has taken the brewing world by storm. Boston Magazine named Trillium Boston’s Best Brewery and a remarkable 21 of the Trillium beers rate at the 98th percentile and above on RateBeer. They have just opened their 2nd brewery in the Boston suburb of Canton to quench the thirst and demand from New England beer lovers. It is our great pleasure to combine JC’s talents with that of De Proef’s Dirk Naudts to bring this unique collaboration to beer lovers across the country.

About The Beer

A farmhouse style ale featuring pronounced ripe notes of pineapple and peaches in the nose balanced by hints of dry hop aroma. A unique blend of wild yeast and bugs creates a subtle and pleasing earthiness to the nose and on the palate. It has considerable finesse and pleasantly thirst quenching.

Malts: Pilsner, malted white wheat, blend of oats, wheat, rye, barley
Hops: Sterling, Galaxy, Mosaic
Yeast: Mixed fermentation of brett and custom microbes

6.5% ABV Bottle Conditioned
Available in 11.2oz bottle; 20L keg.


Saison Imperiale Belgian Farmhouse Ale label


Saison Imperiale Belgian Farmhouse Ale

While Saisons are generally known for their light body and subtle spice, Saison Imperiale is a bolder, "mega" interpretation of the style. Light amber in color, funky wild yeast notes and spice in the nose, with a bit more malt character, body, and hop notes as appropriate to the "Imperiale" style. May 2006 selection - Michael Jackson's Rare Beer Club.

8.5% ABV Bottle Conditioned
Available in 750ml bottle.


Lozen Boer label


Lozen Boer

Named for the famous West Flanders restaurant near the brewery. The label tells the story of the restaurateur's father who smuggled cows from Amsterdam to Belgium. The beer is dark and rich, with dark fruit and spicy aromas and flavors. Layers of depth and complexity. September 2005 selection - Michael Jackson's Rare Beer Club

10.0% ABV Bottle Conditioned
Available in 750ml bottle.


Reinaert Flemish Wild Ale label


Reinaert Flemish Wild Ale

Fermented three times with two different yeasts, including a strain of brettanomyces - the "wild yeast" of lambic brewing. Pale golden color with an enormous rocky white head. Brett and spicy aromatic notes, with a malty-funky-juicy note on the palate. Finishes with Brett and dry hop notes.

9.0% ABV Bottle Conditioned
Available in 750ml bottle.


Zoetzuur Flemish Ale label


Zoetzuur Flemish Ale

From the Flemish translation for "sweet-sour." This is a unique amber colored ale of multi yeast strain fermentation, with a hint of Belgian Kriek (cherry) juice added. The brewer has combined these elements in a subtle and complex blend where sour notes are balanced by tart fruit, hints of wood, and a velvety finish.

7.0% ABV Bottle Conditioned
Available in 750ml bottle.


Wekken Sour (Lefthand Brewing Collab) label


Wekken Sour (Lefthand Brewing Collab)

JUNE 2015
Left Hand Brewing Co.’s founder Eric Wallace has spent much of his life traveling and living in Europe. His appreciate for the finely crafted beers of Belgium and Europe inspired him to build Left Hand Brewing Co. in the shadows of the Rocky Mountains in Colorado in 1993.

Twenty-one years later, we are excited to collaborate on a unique blend of their infamous Wake Up Dead Imperial Stout and De Proef’s Zoetzuur. The resulting beer is nearly black with roasted malts contributing complex flavors of licorice and blackstrap molasses balanced by lively herbal hop notes. The heavy foundation of the Wake Up Dead is enlivened by Zoetzuur’s tart cherry flavor and acidity.

We hope you enjoy this ninth edition in our collaboration series from the beautiful Old World city of Ghent. Enjoy this now or cellar and relish on a cool, wet day. Cheers!

8.9% ABV Bottle Conditioned
Available in 750ml bottle; 20L keg.


More Information:
  •  De Proef website
    Sales Flyers:
  • De Proef Brand Book
  • Wekken Sour Sell Sheet
    Marketing Materials:
  • De Proef Artwork
  • Point of Sale Items
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