This beer comes from barrel 15. The beer which served as the base is the Grutte Pier Triple which has been in an oakwood barrel from November 2018 till April 2020. An edition of 720 bottles.
This beer underwent an extra fermentation with a brettanomyces yeast in a French oakwood barrel. Therefore we call this beer a Bretttûne beer, this beer style is a combination of the word Brett and Tûne (Frisian for barrel) and the three t's stand for the trinity: Beer, Barrel and Brett. The beer style Bretttûne distinguishes itself by a complex fruity character, a slight sourness and subtle vanilla because of the oakwood. A beer which you could easily store in a dark and cool place to let it ripen for years.