It is a completely original beer which, contrary to the other products of the Brewery, is not brewed with 35% of wheat. The Iris, which is only made with malt of the pale ale type conserves the typical flavour of the spontaneous fermentation, the complex aromas and the vinous taste.
The hopping is different too. Lambic is made with 100% dried hops, for the Iris we use 50% of dried hops and 50% of fresh hops. After two years in the barrel, the Iris undergoes a second fresh hopping two weeks before the bottling. This technique, called "cold hopping", gives the beer a more intense savour and makes the smell and the taste more bitter. The second fermentation is obtained by adding liquor.