Where can I find Acid preserves in Mamishaus?

Acid preserves can also be found in these cities:

Belp Bern Bremgarten bei Bern Courtepin Düdingen Fribourg Granges-Paccot Gümligen Heimberg Hinterkappelen Ittigen Kerzers Konolfingen Köniz La Roche FR Marly Murten Münsingen Ostermundigen Schwarzenburg Schwarzsee Steffisburg Thun Uetendorf Villars-sur-Glâne Worb Wünnewil-Flamatt

You can also find this in Mamishaus:

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