stylish, everyday serveware crafted from glazed portuguese clay elegant shape which is press-moulded with a fine edge matching items available to complete your collection our robust portobello stoneware collection is made from a unique portuguese clay developed especially for us that's also dishwasher-, microwave-, oven- and freezer-safe. our skilled artisans apply an all-over classic white or grey glaze that's perfect for both everyday dining and special occasions.