Where can I find Baking soda in Niederhelfenschwil?

Baking soda can also be found in these cities:

Abtwil SG Amriswil Appenzell Arbon Bischofszell Bronschhofen Bütschwil Constance Degersheim Flawil Gossau Herisau Kirchberg Kreuzlingen Matzingen Müllheim Münchwilen Romanshorn Sirnach St. Gallen Sulgen Teufen Tägerwilen Uzwil Weinfelden Wil Wittenbach Zuzwil

You can also find this in Niederhelfenschwil:

Bourbon Whiskey Candies Fruit And Vegetables Sausage Packed Rice Pudding Baking Powder Spelt Bread Nut Nougat Cream Balsamic Vinegar Pork