Pure Katha (Catechu Extract) - Acacia Catechu

Also known as: Khair, Cutch, Black Catechu, Kattha, Dark Catechu, Pegu Cutch.

Scientific name: Acacia catechu (The concentrated heartwood extract of the Khair tree, native to the sun-drenched forests of South Asia).

The Botanical Extraction: Katha is not a raw bark but a "Heartwood Resin." It is produced by boiling the dark, internal wood of the Acacia tree in water until a thick decoction forms. This liquid is then cooled and crystallized into solid blocks or cakes. The process requires precision; only trees of a certain age provide the deep, reddish-brown "Core" necessary for high-quality Katha.

Physical Characteristics: Brittle, matte blocks or fragments with a deep chocolate to reddish-brown hue. When broken, the interior reveals a porous, crystalline structure that is characteristic of traditional slow-setting methods.

Sensory Profile: Initially intensely astringent and bitter, it leaves a surprising, lingering sweetness on the palate. Its aroma is earthy, woody, and slightly smoky.

Chemical Profile: Exceptionally high in Catechin and Catechu-tannic acid, which are powerful natural polyphenols that give the resin its unique "Binding" and coloring properties.

Historical Context: For centuries, Katha has been the "Soul of the Paan Tradition" across the Indian subcontinent. Beyond the culinary world, it was a prized commodity on the Silk Road, utilized by royal tanners and master dyers for its ability to produce permanent, light-fast earthy tones.