Shinkoukinzoku Pure 160mm x No Force Made in Grater, Copper, Handmade, Double-Sided, 80mm, Required, Grater, Craftsman, Japan, Tsubame-Sanjo O-6

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- ・Never heat it in a microwave or put it directly on fire. ・Products made of copper without clear lacquer coating on the surface will discolor. ・If used in a humid location, patina may occur. - The patina is harmless, so you can use it as is. If you are concerned about it, you can easily remove it by applying a mixture of vinegar and salt to a cloth and polishing it, so please use this method. ・The above discoloration is not rust, but a film created by copper itself to protect itself from oxidation. The color will be restored if you polish it with a special cleaner for copper, but you can still enjoy the change in color of pure copperware even if you use it as is. ・We hope that you will consider this change over time to be a characteristic of pure copper, and that you will be able to use it for many years to come.