This Pottery Coffee Mug was made according to ancient Ukrainian technology with the use of cow's milk. After the first Roasting, the Mug is dipped into milk, then the mug goes through one more roasting, the milk fills all pores and caramelizes, which gives the glaze effect. Each piece has been handcrafted from stoneware in Ukraine and is suitable for use in the dishwasher, microwave, and freezer. The Ceramic Mug is totally handmade, without use of lathe. Each product is unique and handmade produced on a potter's wheel with no casting or mechanical stamping. Features -HIGH RESISTANCE to thermal shock helps to reduce breakage and chipping -100% NATURAL MATERIAL - clay and milk (with no additives, dyes or chemicals). Each piece may slightly vary in color and have small imperfections and marks due to its treatment in milk. -TOTALLY ECO friendly and food safe -FREEZER SAFE UP to 500°F. -In the MANUCFACTURE of this MUG is not used classic glaze! -HANCRAFTED in UKRAINE using high quality locally sourced clay. -TOTALLY HANDMADE ceramic cups and mugs made with love. -GREAT GIFT IDEA! Makes great and elegant gift on any occasion - birthday, Christmas,For Him, For Her, Thanksgiving. Product Details Capacity: 5 oz. Style: Eco. Material: Clay and Milk Microwave Safe: Yes Dishwasher Safe: Yes Chip Resistant: Yes Please view all photos carefully as they are part of this item's description, and please ask any questions about this item that may not be mentioned in the description about its function, appearance, and condition. POSTAGE: All items packed very securely, using top quality and, wherever possible, ECO friendly packaging, with 100% non damage guarantee.