How to simply decaffeinate Green tea?

First the questions comes why decaffeinate Green tea is needed. The answer is actually its having some side effect,moreover its not suitable to be given to children and elder patients.There is a very easy method to get rid of 80-90% of caffeine from that Green Tea.Here are the following method-

Simply Immerse the tea for a minute in hot water and discard the liquid.After that add hot water again and Immerse in the manner you would normally use to brew a cup of that tea.In this manner we can get rid of 90% of the caffeine which is actually released into the first brief infusion. Keep in Mind that if you want to Purchase the decaffeinated tea,be sure it is prepared by the Swiss water method, or CO2 processed Manner.