Which coffee mugs are suited for restaurant use?

Custom Vitrified Mugs are the only mugs durable enough for use in a restaurant setting. The ink used on the imprint for vitrified coffee mugs is specially-designed to withstand the ultra-high temperatures of commercial dishwashers. Furthermore, vitrified mugs are specially-fired so they are more durable, more resistant to chipping, and less likely to absorb water.

You can view vitrified mugs by using the Durability filter, which is shown in the screenshot below.