The Process of Coffee Decaffeination

The beverage industry is a major money making enterprise with many competing advertising messages aimed at the consumer on a daily basis. All beverages including coffees, teas, sodas and bottled water are marketed around a major ingredient – caffeine or no caffeine. In the non-caffeine market segment, consumers will notice many terms used to describe the beverages such "decaffeinated", "naturally decaffeinated", and "caffeine-free". As a general rule, beverages should only be considered "caffeine-free" if there was never any caffeine in the ingredients to begin with. This rules out all coffee beans and tea leaves because both contain caffeine in their unprocessed form. For coffee and tea lovers who do not want caffeine in their drink, they should pay attention to both natural variations in caffeine content of various teas and coffee (some have more and some have less) as well as the physical decaffeination process used to manufacture a specific coffee or tea product.

So far, there is no method of decaffeination that can remove 100% of the caffeine from coffee. The U.S. standard – which is, by the way, a "standard" and not a law – says that a beverage may be labeled "decaffeinated" if 97% of the caffeine content has been removed. Europe generally follows a higher standard which is closer to 99%, but still not foolproof. And beyond the manufacturers’ control, brewing methods and steeping times (length of time a tea bag is left sitting in your hot water cup) drastically affect the level of caffeine that you end up consuming.

Percentages are where thinking about the actual caffeine content of different types of coffee beans, roasts and teas can be useful. For example, Arabica beans normally contain roughly one-half the caffeine of Robusta beans. So whereas a Robusta brew may have 100 mg of caffeine and its decaffeinated equivalent 3 mg, the equal serving of Arabica brew would contain about 50 mg of caffeine and 1.5 mg in the decaf version. Teas also have naturally lower caffeine content than coffee – of any variety. Once you read about the industrial methods of extracting caffeine from a coffee bean, you may want to carefully consider the beverage products you choose.

Source : articlesbase