Where can I find Baking soda in Kestenholz?

Baking soda can also be found in these cities:

Balsthal Biberist Breitenbach Bubendorf Derendingen Egerkingen Egolzwil Erlinsbach Gerlafingen Herzogenbuchsee Huttwil Langendorf Langenthal Laufen Lostorf Murgenthal Oensingen Oftringen Olten Reiden Rothrist Schönenwerd Solothurn Utzenstorf Zell Zofingen Zuchwil

You can also find this in Kestenholz:

Cheese Particle Lemon Aroma Jam Ice Cream To Portion Poultry Still Water Coffee Pods Poppy Seed Roll Canned Fruit