The Benefits and Uses of Blue Turmeric

Blue turmeric is an interesting and uncommon plant, a close relative of the more familiar yellow turmeric. Its unique coloring and historical use in traditional practices make it a subject of curiosity.

What Is Blue Turmeric?

Blue turmeric, known scientifically as Curcuma caesia, is a perennial herb native to India and Southeast Asia. It is also commonly referred to as black turmeric or kali haldi. The plant itself can grow to about three to four feet in height and features lush, green leaves, often with a dark red or purple stripe down the center. This makes it an attractive plant for gardens in warm climates.

The most notable feature of this plant is its rhizome, which is the underground stem that is harvested. While the exterior of the rhizome looks similar to ginger or common turmeric, the interior flesh has a striking bluish-black color. Blue turmeric grows in a similar manner to common turmeric, taking about nine months for the rhizomes to mature for harvesting.

Blue Turmeric vs. Yellow Turmeric

The most apparent difference between blue turmeric and yellow turmeric (Curcuma longa) is the color of their rhizomes, which reflects their distinct chemical compositions. Blue turmeric has a bluish-black flesh, while yellow turmeric is known for its bright, orange-yellow interior. Yellow turmeric is famous for its high concentration of curcumin, responsible for its color and many of its widely studied properties.

In contrast, blue turmeric’s unique aroma and properties are attributed to the presence of camphor. This gives it a pungent, slightly bitter, and earthy flavor with a cool, camphor-like scent. Yellow turmeric has a warmer, peppery taste that has made it a staple in culinary applications. Due to its intense flavor, blue turmeric is not typically used in cooking but is instead reserved for medicinal and ritualistic purposes.

Health Benefits and Traditional Uses

Blue turmeric has a long history of use in traditional medicine systems like Ayurveda, where it addresses ailments related to inflammation and pain. The paste made from its rhizomes is often applied topically to wounds, as well as on snake and scorpion bites in some tribal communities. Its use extends to addressing muscle aches and joint pain.

The plant is also utilized for respiratory issues such as coughs and has been used to soothe gastric problems. It is considered to have antioxidant properties, which help the body manage free radicals. While traditional knowledge is extensive, modern scientific investigation into its specific health applications is still developing.

How to Use Blue Turmeric

Blue turmeric can be found as a fresh rhizome, a dried powder, or sometimes as a pre-made paste. When using the fresh rhizome, it can be grated or thinly sliced. A common way to ingest it is by adding a small amount to teas or smoothies, which helps to dilute its potent taste.

The dried powder form is also versatile and can be mixed into warm water or milk. Due to its strength, a general guideline is to start with a very small amount, such as a fraction of a teaspoon, to assess tolerance. Creating a paste for external application involves grinding the fresh rhizome, often with a little water, to apply to the skin for specific concerns.

Finding and Storing Blue Turmeric

Blue turmeric is a rare find compared to its yellow counterpart. It is most likely to be available at specialty Indian or Asian grocery stores, from herbal suppliers, or through online retailers. When purchasing fresh rhizomes, look for firm pieces that are free from any signs of mold or soft spots. The skin should be intact and not overly shriveled.

To store fresh blue turmeric, place the rhizomes in a breathable bag in the refrigerator, where they can last for a few weeks. For longer-term storage, they can be frozen. The dried powder should be kept in an airtight container in a cool, dark, and dry place.