Slates, by definition, are eco-friendly as they are mined directly from natural quarries. They are especially ideal for foods such as cheese, pâtés, cured meats, desserts and vegetables, as they retain cold and will keep foods fresh and appetizing. Simply store in the refrigerator overnight, or chill for before serving. Slate also has the ability to retain heat, making it ideal for serving food on buffets or tableside. Preheated in the oven, it can be used to serve warm dishes such as grilled fish, foie gras or grilled vegetables, or used to grill fish and meat at high temperatures. Slate will retain heat throughout the duration of the meal. Keep in mind that these slates are natural and therefore require hand-washing under warm water using a sponge or a nylon kitchen brush. These slates may break if dropped. One side of this slate is smooth, and the other side has three wells that measure 2 3/8” to serve condiments and sauces in small containers. Compatible with mini glass jars: 41589-08, 41589-14, 41589-16 and 41589-22.