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Alum powder is a crystalline powder that is most commonly used in pickling; it keeps pickles firm and crispy.


Alum powder is often used to firm and crispen pickles by letting them soak in a sealed brine solution of water, vinegar, salt, spices, and alum powder for several weeks. Cucumbers should be pickled at the peak of freshness because they will become soft after a few days. Use up to 1/4 teaspoon of alum per pint of solution.

Alum’s tissue-shrinking properties gave it a starring role in multiple episodes of the cartoon Looney Tunes in which alum was shown to comically shrink the characters’ heads and pucker up lips.

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Ratings & Reviews

211 Ratings
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1 star
July 31, 2022
Great to deter dogs from destroying the house 1/4 powder in 1 1/2 Cup warm water in a spray bottle. White spots come off furniture but we have our house. Now I needed it to put on my dog's bandage that I'm wrapping her ankle with. Works great.
, Portland, OR
June 27, 2022
I like the product. This is my first time trying it and it is really good. Thank you
, Manassas, VA
March 30, 2022
Delivery was early and just as ordered. Great service
, Taylor, AR
March 20, 2022
Small homestead, using to cure rabbit hides
, Princeton, MA
Showing 1-4 of 223


Aluminum Sulfate. Packaged in the same facility as peanuts, tree nuts, wheat, soy, and milk products.

Nutrition Facts

Serving size 16g (~0.6 oz.)

Amount per serving
% Daily Value
Total Fat   0g0%
Saturated Fat 0g0%
Cholesterol   0mg0%
Sodium   0mg0%
Total Carbohydrate   0g0%
Dietary Fiber 0g0%
Total Sugars 0g
Protein   0g

The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice

More Info

Store at room temperature for up to 1 year.

Country of origin: United States

ID: 7386

Click here to read related CA Prop 65 Warning