Large wine containers are typically made of glass, ceramic, or metal and come in a variety of shapes and sizes. VATS, which are four letter words, are large wooden or metal containers used to store and ferment wine. JUGS, also four letters, are smaller containers that can be made of glass, ceramic, or metal and are used to store and serve wine. Tuns, another four letter word, are large wooden barrels used to store and age wine. All three of these large wine containers are essential for the production and storage of wine.