Silver must be stored in a completely dry state. If you use silver frequently, be careful not to be exposed to the air and keep it in a storage box based on fabrics for anti -coloring such as Planel pouch provided by Tiffany. The storage box is made of fabrics for discoloration, and it is recommended to have a separate space for each product. If the weather is humid, put a dehumidifier for removing moisture in the form of a small grain in the storage box, regardless of the closed box or planel roll. Rubber sulfur can cause discoloration and corrosion, so do not leave it close to rubber bands or other rubber products.