Zarf 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 complex, ritualized process. It was served in small cups without handles (known as "fincan"), which were placed in holders known as "zarf" (from the Arabic word ظرف "ẓarf", meaning "container, envelope") to protect the cup
Coffee filter 10 to 15 micrometres. For a filter to be compatible with a coffee maker, the filter needs to be a specific shape and size. Common in the US are cone-shaped filters #2, #4, and #6, as well as basket-shaped filters in an 8-12 cup size. Other important parameters are strength, compatibility, efficiency and capacity. If a coffee filter doesn't possess enough "strength", it will tear or rupture, allowing coffee grains to collect in the coffee pot. "Compatibility" describes a filter medium's resistance to degradation by heat and chemical attack; a filter that is not compatible with the liquid passing through