Where can I find Baking soda in Rehmen?

Baking soda can also be found in these cities:

Alberschwende Andelsbuch Au Bizau Bludenz Bregenz Damüls Dessau-Roßlau Doren Dornbirn Egg Hittisau Innerbraz Kennelbach Krumbach Lech Mellau Nüziders Riezlern Schnepfau Schröcken Schwarzach Schwarzenberg Thüringen Warth Wolfurt

You can also find this in Rehmen:

Vanilla Sugar Jelly Popsicle Meat Coffee Drinks Normal Rolls Acid Preserves Vegetable Oil Prosecco Bourbon Whiskey