Where can I find Rye breads in Grenchen?

Rye breads can also be found in these cities:

Biberist Biel Bienne Brugg Burgdorf Delémont Derendingen Gerlafingen Hasle bei Burgdorf Ipsach Kirchberg Langendorf Lyss Moutier Münchenbuchsee Nidau Solothurn Tavannes Utzenstorf Zuchwil

You can also find this in Grenchen:

Fish Croissants Flour Wheat Breads Diet Products Ready Meals Energy Drinks Espresso Beans Food Flips