Enamel Mug | Cream/BlueTraditional, durable and smooth, porcelain infused enamel mug for the kitchen, for camping, or as you will. If you drop enamelware, it may chip but it wont break. If the outer porcelain layer chips, the steel beneath it naturally oxidises and the enamelware remains safe to use. As our enamelware is handcrafted, there may be small black marks underneath the rim which are created by the tongs and hangers used during the firing process. Dishwasher safe.