Where can I find Baking soda in Grossaffoltern?

Baking soda can also be found in these cities:

Belp Bern Biberist Biel Bienne Bremgarten bei Bern Brugg Derendingen Gerlafingen Grenchen Gümligen Hinterkappelen Ipsach Ittigen Kerzers Kirchberg Köniz Langendorf Lyss Murten Münchenbuchsee Neuenstadt Nidau Ostermundigen Solothurn Tavannes Tramelan Utzenstorf Worb Wünnewil-Flamatt Zollikofen Zuchwil

You can also find this in Grossaffoltern:

Yogurt Pizza Flavors Honey Popsicle Meat Mineral Water Coffee Drinks Pretzel Cookies Canned Vegetables