Is Alum Powder Poisonous? Here’s What You Need To Know

Purified Potassium Alum Powder at Rs 350/kg फिटकिरी पाउडर, एलम पाउडर

What is Alum Powder?

Alum powder, also known as potassium alum or ammonium alum, is a white crystalline powder commonly used in cooking, pickling, and as a preservative. It is also used in some beauty and health products, such as deodorant and aftershave.

Is Alum Powder Poisonous?

The short answer is no, alum powder is not poisonous when used in small amounts. In fact, it has been deemed safe by the FDA for use in food and cosmetics. However, consuming large amounts of alum powder can be harmful to your health.

What are the Risks of Consuming Alum Powder?

Consuming large amounts of alum powder can cause a range of health problems, including stomach cramps, nausea, vomiting, and diarrhea. It can also cause kidney damage, seizures, and even death in severe cases.

How Much Alum Powder is Safe to Consume?

The amount of alum powder that is safe to consume varies depending on the individual’s age, weight, and overall health. However, in general, it is recommended that adults should not consume more than 1 gram of alum powder per day. Children and pregnant women should avoid consuming alum powder altogether.

How to Use Alum Powder Safely

If you are using alum powder in cooking, pickling, or as a preservative, it is important to use it in moderation and follow the recommended guidelines. It is also important to store it in a dry, cool place away from moisture and heat.

If you are using alum powder in beauty or health products, it is important to read the label and follow the instructions carefully. It is also a good idea to do a patch test before using it on your skin to avoid any adverse reactions.


While alum powder is generally safe when used in small amounts, it is important to be aware of the potential risks and use it in moderation. If you experience any adverse reactions after using alum powder, stop using it immediately and seek medical attention.

As with any substance, it is always best to err on the side of caution and consult a healthcare professional before consuming or using alum powder in any way.