Where can I find Tri-grain toast in Balsthal?

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

Aesch Biberist Breitenbach Bubendorf Derendingen Egerkingen Gelterkinden Gerlafingen Herzogenbuchsee Langendorf Langenthal Laufen Lostorf Murgenthal Oensingen Oftringen Olten Rothrist Sissach Solothurn Utzenstorf Zell Zofingen Zuchwil

You can also find this in Balsthal:

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