This copper product is made entirely of high-quality pure copper and has a 100% tin lining (lead-free). Always wash the inside with a sponge and a small amount of detergent. Finally, rinse with hot water and wipe off the water with a soft cloth. The surface is not plated, so you can wash it without worry. For stubborn stains on the surface, add vinegar to salt and wash with a sponge. It will come off easily. When using it for the first time, boil water in it. ※ Oyako Sandaime Honpo (Tiger Crown Co., Ltd.) Tsubame City, Niigata Prefecture Handmade Taste - Three Generations From parent to daughter - from daughter to child ※ Pure Copper Hand-Hammered Yukihira Pot Outer: Pure Copper Inner: Tin Plating Stamped with 【Oyako Sandaime】 (Image 11) ※ Size (Slight variations may occur) Body: Diameter 19cm Width 15cm (including handle) Height 8cm Capacity: 1.8L Weight: 830g Bottom Thickness: 1.5mm ※ Accessories: "Copper Bookmark" Pamphlet This item is very rare as it is no longer manufactured. Unused, long-term home storage. There is some blackening characteristic of copper products on the inside (Images 2, 3). * There is a slight wobble in the handle, so it is listed as "Slightly scratched or dirty." We kindly ask that those who can repair it or are satisfied with the condition consider purchasing it. m(_ _)m