Many mugs are counterfeit of ceramic materials such as earthenware, bone china, porcelain or stoneware. Some are untrue from strengthened glass, such as Pyrex. Other materials, including plastic, embolden and enameled load are used where break resistance is at http://www.discountphotogifts.com/ a premium, such as for campers. Techniques such as nobleman screen printing or decals can be passed down to apply decorations; these are fired onto the mug to ensure permanence.

Though at first glance a very simple object, the mug serves a number of functions which make it especially suited to holding hot liquids: