Aleppo soap is made by saponifying laurel oil, olive oil, and caustic soda. The “warm procedure” is applied to manufacture enticing Aleppo soap.

In large cauldrons, the oil mixture is combined with an aqueous solution containing the soda. The oil is then converted to glycerin and sodium salts after being heated to above 200 degrees Celsius and agitated. The caustic soda solution is emptied from the cauldron, and the soap mixture is allowed to cool overnight before draining the surplus water. The soap is hand cut into square bars, branded, and stored in a dry area for at least six months once it has solidified.

The process of manufacturing soap is generally carried out from November to April, when the oils are freshly collected during their harvest season. In general, the more laurel oil used, the better and thus more costly the soap. In the production of Aleppo soap, the quantity of laurel oil typically ranges from 2% to 40%.

Aleppian soap artisans pioneered “cold process” soap making in the twentieth century, using a range of herbs and essential oils into their soaps.

Unlike other soaps, certain Aleppo soap will float in water.

Aleppo soap is also biodegradable