Where can I find Three-grain bread in Pieterlen?

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

Biberist Biel Bienne Brugg Gerlafingen Grenchen Ipsach Kirchberg Langendorf Le Landeron Lyss Moutier Münchenbuchsee Neuenstadt Nidau Solothurn Tavannes Tramelan Utzenstorf Zollikofen Zuchwil

You can also find this in Pieterlen:

Flaxseed Bread Fruit Bar Pickled Vegetables Fresh Salt Schupfnudeln Whole Grain Rolls Mayonnaise Rice Pastries