• 5 years ago
Coffee contains caffeine. Caffeine boosts our energy and keeps us focused for a short duration. However, caffeine can also cause headaches, nervousness, etc. Hence, decaffeinated coffee is a very good alternative.

Now, there are various methods to decaffeinate coffee. One of them is solvent based method. In this, green coffee beans are first soaked in hot water for several hours. This causes caffeine and flavor of coffee to get dissolved in hot water.

Now, in the second step, the green coffee beans and hot water are separated. Then, using various solvents like methylene chloride or ethyl acetate, caffeine is removed from this water. Then this water which still has the flavor of coffee in it, is added back to the coffee beans so that they reabsorb the flavor. In this way, coffee is decaffeinated without compromising its flavor.