Where can I find Baking soda in Gempen?

Baking soda can also be found in these cities:

Aesch Allschwil Arlesheim Balsthal Basel Binningen Birsfelden Breitenbach Bubendorf Dornach Egerkingen Ettingen Füllinsdorf Gelterkinden Grenzach-Wyhlen Kanton Reinach Laufen Liestal Lörrach Muttenz Möhlin Münchenstein Oftringen Olten Pratteln Rheinfelden Rheinfelden (Baden) Riehen Rothrist Schopfheim Sissach Steinen Wehr Weil am Rhein

You can also find this in Gempen:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks