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About Brehon Brewhouse

The name of this brewery is inspired by the old Brehon Laws that governed medieval Ireland, which stated that every clan was allowed to brew beer for their own family. All of this wonderful heritage is incorporated into the Brehon Brewhouse brand.

Located in Co. Monaghan, Brehon Brewhouse was founded by Dairy Farmer Seamus McMahon, who wanted to diversify his homestead taking inspiration from the wealth of literary and familial history in the area. Brehon Brewhouse offers an immersive experience for craft beer enthusiasts including a visit to the milking parlour. 

The farm has been in the McMahon family for generations, originally a dairy farm and still home to a dairy herd milked every day today. The brewing aspect offered a way to boost the productivity of the homestead. At a time when craft brewing was taking off, Seamus decided to have a go. Sheds were converted for the brewery and a Master Brewer was employed.

Brehon Brewhouse beers are now available in many countries, as well as around Ireland. Seamus, often referred to as the ‘King of Stouts’ has created a beautiful range of high-quality craft beer with a flavour to suit everyone’s tastes.

Patrick Kavanagh’s poem Stony Grey Soil inspired the name of the first beer brewed at the Brehon Brewhouse. The poet was born just a few miles from the brewery, located on the McMahon family farm in Dunelty, Inniskeen Co. Monaghan. Should you decide to visit the brewery, the wonderful Patrick Kavanagh Centre is just a stone’s throw away and is well worth a visit.

All Brehon Brewhouse beer is brewed on-site at a state-of-the-art micro-brewing facility on our farm. Due to the continued popularity of our beers at home and abroad we have grown to a 30 HL plant in a short space of time.

All canning and bottling occurs onsite and all of our ingredients are sourced from the local farming community. We have a Deep Borewell on site which provides all of the water required for the brewing process. Our grains can be traced to the source. We use Propylene Glycol to control temperatures during the brewing process.

It's true to say that the biggest ingredient added to our beer is time. We never rush our brewing process and are committed to dedicating the required time to make each brew perfect. We are very proud of the quality of our brewing process and the great beers that are born within.


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