Sell Hot and cold sakura cups that change color when exposed to water Japanese style single cup ceramic tea set tea cup best price

Note: Cold temperature color change requires the use of ice water. Options: Material: Ceramic Dimensions: 9 * 3.8cm Features: Cold change cup: Cold change requires ice water to change color, hot water at room temperature cannot change color. The lower the water temperature, the stronger the discoloration effect and the longer the discoloration time [Ice water below 18 degrees is the best] Thermal change cup: Thermal change requires hot water to change color, and ice water at room temperature cannot change color. The higher the water temperature, the stronger the discoloration effect and the longer the discoloration time [the hot water below 50 degrees is the best]