Zarf to avoid mistakes. The United States Navy also has an item, usually made in the on-base metal shops, that is bolted to bulkheads and consoles to hold coffee cups. The Navy zarf is not ornamented. Zarf A zarf (plural: zarfs, zuruuf, zarves) is a holder, usually of ornamental metal, for a coffee cup without a handle (demitasse or fincan). Although coffee was probably discovered in Ethiopia, it was in Turkey at around the thirteenth century that it became popular as a beverage. As with the serving of tea in China and Japan, the serving of coffee in Turkey was a
Coffee cup corner of the Space Cup allows the liquid to flow toward the drinker's lips through capillary flow. The data from experiments conducted with Space Cups can be used to better the design of fluid systems used in space, such as toilets, oxygen, air conditioning, and water coolants. The data can also be applied to societal uses of fluid systems on Earth, such as improving the design of portable medical blood testers for infectious diseases. Porcelain allows for heat retention and crema preservation. However, porcelain cools down quickly due to air bubbles in the cup. Crema is the coffee foam at