White Ceramic Mugs (both glossy and with color inside) are dishwasher and microwave safe, but the print and coating will last longer if you hand-wash them.
Enamel Mugs should only be hand-washed, and you can’t put them in the microwave. Also, don’t heat liquids or food directly in the Enamel Mugs—it can damage their coating.
Black Glossy Mugs are dishwasher and microwave safe, but, just like with White Ceramic Mugs, the print and coating will last longer if you hand-wash them.