Alum can be found in the spice aisle at the grocery store. Alum is nontoxic, but can cause irritation to the eyes. Avoid touching your eyes or wear protective glasses. Glass jars are recommended because you will be using hot water.

Dangers and Warnings When aluminum sulfate is mixed with water, it forms sulfuric acid that burns human skin and eyes. Contact with the skin causes a red rash, itching, and a burning feeling while inhalation irritates the lungs and throat. When inhaled, it immediately causes coughing and shortness of breath.

Aluminum sulfate is fairly non-toxic, with acute and chronic oral LD50 both greater than 5,000mg/kg (5). However, alum can still cause irritation, burns, and respiratory issues. If inhaled, it may cause headaches, nausea, and respiratory irritations. Alum is not listed as a carcinogen by NTP, IARC, or OSHA.

198.5°F (92.5°C)

Yes, Alum is safe to use externally and internally. In Ayurveda, Alum is used in the form of Bhasma named Sphatika bhasma which can be taken orally to manage various diseases.

A pinch of alum powder can be mixed with water or rose water and applied it on the blackheads gently. Do not rub it. Follow this process daily to remove the blackheads easily. You can use this with any natural face masks too.

Potassium alum has natural antiseptic and astringent properties which stop bleeding on the spot, tone the skin and close the pores. This makes alum block the perfect closer for a perfect shave, as you will be left with a fresh, toned feeling and will be protected from razor burn and other irritations.

Alum blocks are typically small, rock like blocks which look clear to milky. They can last for up to two years, even with daily use.

It is aluminium potassium sulfate which can be readily available in the grocery shop. Mainly potash alum is used for longer food life, enhancing food taste, flavor & texture. It is also used in water purification treatment to improve the sedimentation of drinking water. It is also used in leather tanning, aftershave.

Alum is an ingredient in some foods and quite a few non-edible products. If you’re careful about reading labels, you may wonder what alum is and whether it’s really safe. The answer is yes—usually—but in small amounts.

In alums each metal ion is surrounded by six water molecules. When heated, they liquefy, and if the heating is continued, the water of crystallization is driven off, the salt froths and swells, and at last an amorphous powder remains. They are astringent and acidic.

Alum for Hair Removal: Alum is traditionally used for hair removal. Women in historical ages utilized alum for removing unwanted facial hairs just like upper lip hair. Mix 1/2 tsp of alum powder along with 1 tsp of rose water and keep it ready. Adjust the amount of alum powder as well as water as needed.