Three People Toasting with the Japanese Knotweed Beer During the Gastronomical Summit Delen Facebook Twitter LinkedIn Pinterest Email One of the things on the Gastronomical Summit agenda was a Gastronomical talk, followed by a beer tasting. This beer was made out of Japanese knotweed and it was made by Sander Nederveen, who works at Oedipus. Photo by Jada Maij Met: Sander Nederveen, Oedipus Brewing Waar is dit gemaakt? Gastronomical Summit