Kal Namak (Black salt)

Kala namak uses in India as an Ayurvedic medicine for multiple medical benefits is used for many centuries has endured the changes of time many dynasties in India. In the ancient Vedic hymns there are aphorisms sang on the use and benefits of Kala namak.  

Sadashiva who propounded Ayurvedic science approximately 7000 BCE, and Maharishi Charak, around 300 BCE wrote about his finding consolidating kalanamak into Ayurvedic medicine.

Even to its present-day ayurvedic healers use this acclaimed Indian black salt as it possesses diverse therapeutic properties.

Some of the healing properties of Kala namak are:

  • Cure constipation,
  • soothe the bowels, treating acidity,
  • prevent diabetes,
  • prevent cholesterol accumulation and aid weight loss,
  • treat joint disorders and muscle cramps, combat hysteria, helps respiratory problems and produces good dental hygiene.

It is a kiln-fired rock salt used with a sulphurous, ( that gives an eggy odour) also known as “Himalayan black salt”. Other names are Sulemani namak, umami, bit lobonkala noon, or pada loon and manufactured from the salts mined surrounding the mountainous regions of Himalayas.

The condiment widely used in traditional cuisine and remedies are composed mainly of sodium chloride. The chemical composition of black salt consists of essentially sodium sulfate. And some sodium bisulfate, sodium bisulfite, sodium sulfide, iron sulfide, and hydrogen sulfide. The significant presence of Greigite (Fe3S4, Iron(II, III) sulfide) in the mineral, it forms brownish pink to dark violet translucent. When ground into a fine powder, the colour ranges from purple to pink.

The unique sulfurous component that is frequently compared to boiled egg yolks, the reason most people who don’t understand why this salt smell and taste like eggs. Black salt is considered a cooling flavouring according to Ayurveda, and most beneficial variety of savour. You may have come across this in several recipes which have become popular in the last few years. In Indian cooking, black salt is since a very long ago.


The raw material for producing kala namak is obtained originally from natural halite from mines in Northern India and Pakistan in specific locations of the Himalayas salt ranges, or salt harvested from the North Indian salt lakes of Sambhar or Didwana.

The salt is relatively colourless moreover the natural form is modified into the dark coloured commercially sold as kala namak. Commercially a reductive chemical process converts some of the naturally occurring sodium sulfates of the unrefined natural salt into pungent hydrogen sulfide and sodium sulfide.

The firing requires the raw salts placed in a kiln or furnace for 24 hours and sealed in a jar of ceramic with charcoal, small quantities of amlaharad seedsbaherababul bark, or natron. The fired salt melts, a chemical reaction occurs, and then the salt cooled, stored and aged before the trade. Kala namak is prepared in this manner in northern India with production concentrated in Hisar districtHaryana. The salt crystals are blackish-purple in colour, but after grinding it turns into a light pink powder. The production of kala namak from natural salts with the required compounds is commonly manufactured synthetically.

Cooking with Black salt

Chickpea egg roll

Kala namak is used extensively in South Asian cuisines of India, Pakistan, Bangladesh and Nepal as a condiment or added to chaatschutneys, salads, all kinds of fruits, raitas and many other savoury Indian snacks. Chaat masala, an Indian spice blend, is dependent upon black salt for its characteristic sulfurous hard-boiled-egg aroma. Those who are not accustomed to black salt oftentimes describe the smell as similar to rotten eggs.

A.J. Scramble Eggs

Some vegans appreciate kala namak in dishes that mimic the taste of eggs. It is used, for example, to season tofu or avocado to mimic an egg salad.

Kala namak is considered a cooling spice in Ayurveda and is used as a laxative and digestive aid. It is considered to relieve flatulence and heartburn. It is used in Jammu North India to cure goitres. This salt is also used to treat hysteria and for making kinds of toothpaste by combining it with other mineral and plant ingredients.

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