Where can I find Infusion bag in Châtillon?

Infusion bag can also be found in these cities:

Aesch Biberist Biel Bienne Breitenbach Delémont Derendingen Ettingen Gerlafingen Grenchen Kanton Reinach Langendorf Laufen Moutier Solothurn Tavannes Tramelan Zuchwil

You can also find this in Châtillon:

Edible Curd Grated Lemon Peel Flaxseed Bread Fruit Bar Pickled Vegetables Fresh Salt Schupfnudeln Whole Grain Rolls Mayonnaise