In the green tea must be the caffeine like another plants, such in coffee plant or tea plant. There were many ways to change the caffeine condition from green tea. The process of making green tea can affect the content green tea caffeine. On the other hand, the longer green tea , the higher content caffeine have. According to the observation, there were different the content dry- material from leaf tea. In the green tea, it’s ten until twenty milligram while in the black tea, it’s twenty two until twenty eight milligram. So, the green tea has the content caffeine higher than the black tea. Another observation in Japan was showing thirty milligram caffeine per two hundred milliliter cup.
The green tea has higher amino L-theanine acid which it has affected the pleasant thinking and enhanced the concentration. According to the history, the caffeine green tea has higher than coffee. However, it’s not true. This is caused by L-theanine. People have different vigilance level when drinking green tea that the effect has L-theanine, such in Matcha green tea have higher caffeine because that’s made by unique ways.
On the other hand, the content caffeine green tea has higher caused by the process of presenting green tea like save it a long time or use it with heat water. The more interesting is caffeine green tea the more useful than coffee. Otherwise the content green tea have another content like vitamine, oils, and tannin. The content caffeine in green tea has different adjacent to drinker. When someone was drinking green tea, caffeine was not directly increasing blood pressure or heart. Usually people drunk the green tea for decreasing the weight.
Source : specteacular.com