Where can I find Baking soda in Gampelen?

Baking soda can also be found in these cities:

Avenches Belfaux Belmont-Broye Biel Bienne Boudry Brugg Cernier Cortaillod Courtepin Düdingen Estavayer Granges-Paccot Ipsach Kerzers La Chaux-de-Fonds Le Landeron Lyss Milvignes Murten Neuchâtel Neuenstadt Nidau Peseux NE Saint-Imier Wünnewil-Flamatt

You can also find this in Gampelen:

Acid Preserves Vegetable Oil Prosecco Aquavit Confectionery Potato Specialties Salami And Permanent Sausage Milk Baking Ingredients Beer