Where can I find Three-grain bread in Altendiez?

Three-grain bread can also be found in these cities:

Aarbergen Bad Ems Beselich Diez Hadamar Hundsdorf Idstein Lautert Limburg an der Lahn Montabaur Mudershausen Nassau Wallmerod (Westerwald) Winden (Rhein-Lahn-Kreis) Wirges

You can also find this in Altendiez:

Semolina Porridge Cake Vanilla Sugar Jelly Ice Cream Desserts Meat Products Lemonades Instant Coffee Pumpkin Seed Roll Canned Meat