Rinse the drinking horn immediately after each use with lukewarm water, a little mild dish soap, and a soft bottle brush. Dry it thoroughly and then leave it to air dry completely with the opening facing downwards. For stubborn odors, use denture cleaning tablets (e.g., Kukident) mixed with water and left to soak inside the horn for about an hour. Avoid using a dishwasher, hot liquids, and acidic drinks to prevent damage to the natural material and the sealant. For external care, the horn can occasionally be rubbed with vegetable oil.