Vegetable tanning is a traditional method of tanning leather using natural plant materials. This process involves soaking animal hides in tannins, which are organic compounds found in various plants, such as oak and chestnut trees. The tannins bind with the proteins in the hide, making it more durable and resistant to decay. This eco-friendly technique has been used for centuries and is favored for producing high-quality leather with a unique texture and color. Unlike synthetic tanning methods, vegetable tanning is biodegradable and less harmful to the environment, making it a sustainable choice for leather production.