Where can I find Three-grain bread in Heimiswil?

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

Belp Bern Biberist Bremgarten bei Bern Burgdorf Derendingen Gerlafingen Gümligen Hasle bei Burgdorf Herzogenbuchsee Huttwil Ittigen Kirchberg Konolfingen Köniz Langendorf Langenthal Langnau im Emmental Münchenbuchsee Münsingen Ostermundigen Solothurn Utzenstorf Worb Zollikofen Zuchwil

You can also find this in Heimiswil:

Edible Curd Grated Lemon Peel Flaxseed Bread Fruit Bar Pickled Vegetables Fresh Salt Schupfnudeln Whole Grain Rolls Mayonnaise