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
Coffee production in Papua New Guinea Highlands (45%), Eastern Highlands (37%), Simbu (6%), Morobe (5%) and East Sepik (5%). In the late 1990s, the country produced an average of 1.18 million bags annually, of which all were exported. Washed mild "arabica" highland coffee dominates the industry in Papua New Guinea (PNG), accounting for 95% of production, the other 5% being lowland washed "robusta." The "robusta" coffee is of poorer quality, being darker, more bitter, with less flavour that the Arabic variety is generally used for cheaper instant coffee. On the other hand, the higher quality "arabica" coffee is generally sold for making espresso, cappuccino and latte