Kumano ink is a traditional Japanese ink known for its rich quality and deep black color. It is primarily made from soot, which is produced by burning natural materials like pine or oil. This ink is often used in calligraphy and painting, where its smooth consistency allows for precise brushwork and vibrant strokes. Originating from the Kumano region in Japan, Kumano ink has a long history dating back to the Edo period. Artisans in this area have perfected the ink-making process, ensuring that each batch maintains high standards. The ink is favored by artists and calligraphers for its durability and ability to produce fine details.