Drowsy Sake Cups, Set of 4

A set of four copper and tin sake cups (cherry blossoms, fireworks, autumn leaves, and camellias) that change color in response to temperatures below 16℃, presented in a paulownia wood box.
*Please note that the contents of the set cannot be changed.

■ Madoromu Sake Cup

A metal sake cup made of copper coated with tin. The surface features various seasonal patterns that change color when a cold liquid below approximately 16℃ is poured into the cup.
Tin, which is plated on the surface, has a high ionic effect and has the property of purifying water and sake, enhancing their flavor. For this reason, it has long been said that "water in a tin vessel does not spoil" and "sake becomes more delicious as impurities are removed" when using this material.

*Precautions

1. If moisture remains on the surface of the sake cup, it may cause stains or discoloration. After use and cleaning, always wipe off any moisture before storing. If discoloration occurs, it will not affect the taste, flavor, or human body, so please continue to use it as is.
   
2. The illustration may lose its vibrant color if exposed to ultraviolet rays for extended periods. Please store it in a location where it is not exposed to direct sunlight or strong light as much as possible.
   *Refer to HP (https://threesnow.jp/product/w064/)