Misc. › Alum Granules Image 1 of 1 Alum Granules $6.00 sold out Potassium aluminum sulfate. Primarily used to preserve crispness when pickling vegetables. Get notified by email when this product is in stock. Sold Out Added! Potassium aluminum sulfate. Primarily used to preserve crispness when pickling vegetables. You Might Also Like Arrowroot Powder $4.00 Sold out Pure Almond Extract $12.00 Sold out
