Latte art microfoam, which is a foam of air in milk. Milk itself is an emulsion of butterfat in water, while coffee is a mixture of coffee solids in water. Neither of these colloids are stable – crema dissipates from espresso, while microfoam separates into drier foam and liquid milk – both degrading significantly in a matter of seconds, and thus latte art lasts only briefly. Latte art requires first producing espresso with crema and microfoam, and then combining these to make latte art. See microfoam: procedure for how microfoam is made; this article concentrates on the latte art once the foam
Latte stone usually divided into three periods: Pre-Latte, Transitional Pre-Latte, and Latte. Latte stones began to be used in about 800 A.D. and became increasingly more common until the arrival of Ferdinand Magellan in 1521 and Spanish colonization, when they fell rapidly out of use and were entirely abandoned by about 1700. Latte stones have been found on Guam and the southern islands in the Commonwealth of the Northern Mariana Islands, including Rota, Tinian, Aguijan, and Saipan, as well as several small northern islands, such as Pagan. Undisturbed stones are found usually arranged in parallel pairs of between eight and fourteen lattes