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
Pumpkin Spice Latte safe by the FDA, the European Food Safety Authority, and Health Canada. Prior to the 2015 introduction of pumpkin puree, Hari had also raised concerns over the absence of pumpkin as an ingredient in the drink. Institute of Food Technologists (IFT) spokesperson Kantha Shelke argued that the drink was supposed to evoke the spices used in pumpkin pie, not the taste of pumpkin itself. Hari and others also criticized the amount of sugar in the product. Journalist Mandy Oaklander reported in "Time" magazine that one serving of Starbucks' pumpkin sauce contained of sugar. A "grande" Pumpkin Spice Latte, containing three