What about decaf?

Back in 1970’s the process of decaffeination was considered harmful. Nowadays, decaf coffee is considered a healthy option. There are three different ways to make decaf coffee.

1.     1. CO2 method

When coffee beans are soaked in CO2, it loses all the caffeine. After this process, CO2 runs through a charcoal filter in order to make it reusable by removing the caffeine. This is an expensive method and thus lacks popularity.

2.     2. The Chemical Solvent Method

For a couple of hours, the coffee beans get soaked in boiling water. The collected liquid is then transferred into a tank containing Methylene Chloride. The same beans again reabsorb the brewed concentrate. Although it is a quick method, it ruins the quality of coffee.

3.     3. Swiss Water Method

For long hours, coffee beans are soaked in hot water. Using charcoal filtration, green coffee extract starts to collect all the caffeine. The warm water extracts the caffeine. This method is not quick, however, the quality of the beans is preserved in the best way.