They have a bit of a sharp, piquant taste which is never bitter. They are considered a delicacy.
Teltow turnips were considered one of the two finest turnip species (the other being the May Turnip). Goethe loved them and sent for them when he was at Weimar. They were also prized by the French aristocracy, who called them “navets de Teltow”. The variety had almost died out, but now efforts are being made to revive their cultivation (2004).
The full Latin name is “Brassica rapa var. rapifera subvar. pygmaea/Teltoviensis”.