Tin is second only to expensive metals to gold and silver, which has a strong antibacterial effect and is not easy to oxidate. Silver tools are used in the ancient Egyptian dynasty around 1500 BCE, and tin treasures are also stored in Japan. In addition, the water in the tin will not rot, and the liquor becomes mellow and has been used in alcohol and tea bowls since the ancient times. Nogaku tin is 100% pure. Other metals are typically added to give it a hardness, however Norse Tin does not contain any of them. 100% tin is soft and can be easily bent by hand depending on its shape and thickness. When you bend, you will hear a piggy sound.