Where can I find Baking soda in Wichtrach?

Baking soda can also be found in these cities:

Belp Bern Bremgarten bei Bern Gümligen Hasle bei Burgdorf Heimberg Hilterfingen Hinterkappelen Ittigen Konolfingen Köniz Langnau im Emmental Münchenbuchsee Münsingen Ostermundigen Schwarzenburg Spiez Steffisburg Thun Uetendorf Worb Wünnewil-Flamatt Zollikofen

You can also find this in Wichtrach:

Rice Pudding Baking Powder Spelt Bread Nut Nougat Cream Balsamic Vinegar Pork Spice Blends Potato Products Rye Roll Canned Tomatoes