Coffee prepared by adding steamed hot milk (microfoam) to espresso so that the flavour is brought out and the texture is unusually velvety. It has less milk than a latte but both are varieties of coffee to which the milk can be added in such a way as to create a decorative surface pattern. Such effects are known as latte art. Coffee can also be incorporated with alcohol to produce a variety of beverages: it is combined with whiskey in Irish coffee, and it forms the base of alcoholic coffee liqueurs such as Kahlúa and Tia Maria. Darker beers such as
Latte art "Uptown espresso" in 1986, and by 1989 the heart pattern was established and a signature at Schomer's "Espresso Vivace." The rosette pattern was then developed by Schomer in 1992, recreating the technique based on a photograph he saw from Cafe Mateki in Italy. Schomer subsequently popularized latte art in his course "Caffe Latte Art". At the same time Luigi Lupi from Italy met Schomer on the internet and they exchanged videos they made on Latteart and Cappuccini Decorati. Latte art is a mixture of two colloids: the crema, which is an emulsion of coffee oil and brewed coffee; and the