At the current time, it is India at the top position of tea producing countries. India is not just the largest producer but also the biggest consumer of tea as well. India is closely followed by China, Sri Lanka, Kenya and Indonesia. Other than Asia, key tea-producing countries include Burundi, Rwanda, Uganda and Zimbabwe from Africa. While in South America, Argentina and Brazil are the major players in this industry. In addition to these, globally there are many other countries as well which are involved in the tea production, few of them include. Turkey, Iran and Russia. Camellia sinensis is the most popular and common tea plant. This evergreen shrub has many varieties which are basically classified on a geographical basis. Tea is basically produced from its dried leaves. There are basically three major classifications of tea production which include low-grown tea, mid-grown tea and high grown tea. Reason for the popularity of high grown tea is its fabulous flavor and high quality. This category is mostly planted in areas where there is cooler temperature. Due to less temperature crop gets ready slowly and as a result of this final product carries higher quality and better taste. With passing time there has been a growing number of tea-producing countries however there are still three major classifications of Camellia tea which are Black, Oolong and Green tea. These categories are basically formulated due to a chemical reaction. This chemical reaction is known as oxidization. This chemical reaction takes place when leaves are left to completely wither and die. In case of green tea, leaves are not allowed to oxidize as they are fried to dry out. As a result of this many minerals survive in the leaves and this is the reason due to which green tea is taken as a positive tonic to the health.