Many coffee machines use pressure to enhance brewing parameters. Some of the devices that use pressure are single serve coffee machines, such as Keurig, or Tassimo, and espresso machines. Other devices are the Moka pot, or steam espresso makers. Pressure is measured in bar.
Inka is a Polish roasted grain beverage. Developed in the late 1960s during communist rule, Inka has been produced in Skawina since 1971, a centre of coffee production since the early 20th century. Presently it is manufactured by GRANA Sp. Z O.O. While it was used in part as a coffee substitute to alleviate coffee shortages in the 1970s, Inka remains popular, in part to the fact that it is caffeine-free.
A hot plate is a portable self-contained tabletop small appliance that features one, two or more gas burners or electric heating elements. A hot plate can be used as a stand alone appliance, but is often used as a substitute for one of the burners from an oven range or the cook top of a stove.
A hermetic seal has the quality of being airtight. In common usage, the term often implies being impervious to air or gas. When used technically, it is stated in conjunction with a specific test method and conditions of usage.
The pantry is the perfect place to store coffee beans short term, according to specialists.
A college is an educational institution or a constituent part of one. Usage of the word college varies in English-speaking nations. A college may be a degree-awarding tertiary educational institution, a part of a collegiate university, or an institution offering vocational education.
Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point.
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of suitable polymers of the organic compound isoprene with minor impurities of other organic compounds plus water. Forms of polyisoprene that are useful as natural rubbers are classified as elastomers. Currently the rubber is harvested mainly in the form of the latex from certain trees. The latex is a sticky, milky colloid drawn off by making incisions into the bark and collecting the fluid in vessels.
Bisphenol A (BPA) is an organic compound with the chemical formula (CH3)2C(C6H4OH)2. BPA is used to make certain plastics and epoxy resins; it has been in commercial use since 1957 and around 3.6 million tons (8 billion pounds) of BPA are used by manufacturers yearly.
In coffee brewing, concentration is an important factor, determining the coffee strength, taste and flavor. In specialty coffee, Total Dissolved Solids concentration is an important factor. Many people are particularly interested in caffeine concentration.
Europeans like concentrated coffee, whereas North American coffee lovers like coffee with a lower TDS concentration. Turkish coffee is the brewing method with the highest TDS concentration.
Generally, plastic is to be avoided in coffee making devices, especially in parts that come in contact with hot water. Although BPA is more commonly known to pose a health risk if ingested in large quantities, other compounds used for plastic manufacturing can pose higher risks, though not as known by consumers.