All of our pieces are food safe and oven safe. We recommend light dishwashing or gentle handwashing to ensure the longevity of the piece. When storing your special items we recommend to avoid stacking when possible. For items where staking is most practical we suggest stacking between pieces of felt to limit friction on the gold edges. Our pieces are hand painted with either real 22k gold or metallic mother of pearl overglaze, therefore they are not safe to use in a microwave. The porcelain we use is very dense and strong and our glaze is very scratch resistant so we hope you'll enjoy your pieces for many years to come. Thank you for shopping and enjoy your unique and special pieces!