Where can I find Tri-grain toast in Fröndenberg (Ruhr)?

Tri-grain toast can also be found in these cities:

Arnsberg Bergkamen Bönen Dortmund Hagen Hamm Holzwickede Iserlohn Kamen Lünen Menden (Sauerland) Schwerte Sundern (Sauerland) Unna

You can also find this in Fröndenberg (Ruhr):

Spread Sweet Filter Coffee Candy Styling Brushes Washing Lotion Day Care Lotion Contraceptives Franzbranntwein Skin Care Yeast