McCormick® Alum

Alum (potassium aluminum sulfate) is a food additive that is ideal for pickling and canning. It helps create crisp pickled fruits or vegetables.

Usage Tips

• Use to prepare pickles made from vegetables and watermelon rind.
• Dissolve alum in water using amounts specified in your recipe.
• Soak and rinse before canning.

Nutritional Information

This product has no significant nutritional value.


Potassium Aluminum Sulfate.

Allergen Statement

UPC Code (Size)

52100002149 (1.90oz)