Where can I find Tri-grain toast in Bischofszell?

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

Abtwil SG Amriswil Appenzell Arbon Bronschhofen Bütschwil Constance Degersheim Flawil Friedrichshafen Goldach Gossau Herisau Immenstaad am Bodensee Kirchberg Kreuzlingen Müllheim Münchwilen Romanshorn Rorschach Sirnach St. Gallen Sulgen Teufen Tägerwilen Uzwil Weinfelden Wil Wittenbach Zuzwil

You can also find this in Bischofszell:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks