Where can I find Baking soda in Rubring?

Baking soda can also be found in these cities:

Ansfelden Aschbach-Markt Asten Enns Ertl Haidershofen Kleinraming Lanzenberg Leonding Linz Marbach Niederneukirchen Nußbach Ried in der Riedmark Sankt Florian Sankt Georgen an der Gusen Sankt Marien Seitenstetten Steyr Steyregg Strengberg Traun Urltal-Monument Weistrach Wolfern

You can also find this in Rubring:

Canned Tomatoes Sunflower Oil Mustard Brandy Fruit Jelly Frozen Herbs Bacon And Ham Morello Cherries Vanilla Sugar Jelly