Fuji Glass 藤ガラス工房 石塚悠 Handmade Glass Small Tea Cups

DO NOT use in is Microwave/Dishwashers/Dryers

Products of Shotoku Glass are NOT made of heat-resistant glass or tempered glass.

Avoid a rapid change in temperature (particularly rapid cooling) as it may cause enough stress to result in breakage. NEVER put cold water or ice into a hot or warm glass.