Trays and jars should be hand washed, as the dishwasher is a harsh environment for the 22k gold luster. Any item with gold luster cannot go in the microwave.
Over a sink, plug bowl and carb with fingers and pour rubbing alcohol into mouth piece and add a pinch of kosher salt. Cover the mouth piece and shake for a few moments, then empty. Repeat until debris is gone. Use cotton swabs and rubbing alcohol to clean the bowl. Rinse with warm water and air dry before use.
Crazing is the appearance of fine lines in the glaze of pottery. These lines are a natural occurrence in the life of ceramics. If these lines do appear, please know they are not cracks and will not affect the function of your ware.