Where can I find Baking soda in Gipf-Oberfrick?

Baking soda can also be found in these cities:

Aarau Bad Säckingen Brugg Bubendorf Buchs Döttingen Erlinsbach Frick Gebenstorf Gelterkinden Gränichen Görwihl Lenzburg Liestal Lostorf Lupfig Möhlin Möriken-Wildegg Olten Rheinfelden Rheinfelden (Baden) Schopfheim Schönenwerd Seon Sissach Stein Steinen Suhr Unterentfelden Waldshut-Tiengen Wehr Windisch

You can also find this in Gipf-Oberfrick:

Desserts Dessert Baking Mixes Cake Glaze Peanut Butter Ice Cream Rice Dishes Vegetable Juices Instant Iced Coffee Cheese Roll Canned Fish