How clean a currency paper?

Currency paper is designed to be durable and somewhat resistant to dirt and moisture, but it can still accumulate grime and oils from handling. While it isn't sterile, it can be cleaned to some extent by using gentle methods like wiping with a soft cloth. However, excessive cleaning or using harsh chemicals can damage the paper or affect the ink. Generally, maintaining clean hands when handling money and avoiding unnecessary contact can help keep currency looking better for longer.