Production of freeze-dried coffee
The initial stage of preparation of coffee beans for further processing lies in their careful roasting and grinding to the consistency of flour. The resulting coffee flour for three hours is in the process of cooking in a special sealed containers. In the process of making part of the essential oils contained in coffee beans, it goes together with the steam. In order not to deprive future drink useful properties, there is a special technology to extract oil from the vapor.
After three hours of cooking ready a thick coffee sludge subjected to shock-freezing low temperature and then freeze in a vacuum until dry powder. The resulting coffee weight, almost completely devoid of moisture, is broken into granules and is impregnated with essential oils extracted from the coffee at the beginning of the cooking process.
How to look high-quality freeze-dried coffee
When choosing freeze-dried coffee it is worth to pay special attention to its appearance and quality packaging. So, granules of instant coffee should be of large size, dense have a light brown shade and shape to resemble a pyramid. If you buy coffee in a transparent banks, pay attention to the observance of integrity of packaging and shelf life – freeze-dried product can be stored for more than two years. The presence of sediment on the bottom of the jar testifies to violation of technology of manufacturing, this means that, most likely, the drink will not fully convey the taste of freshly brewed coffee from ground beans.
Who shouldn't drink instant coffee
Coffee is strictly forbidden to use for pregnant women and young mothers in lactation period, children under ten years of age and people prone to hypertension with heart disease and blood vessels, gastrointestinal tract, kidney and urogenital system.