Green tea and black tea, of course, are leaves from the same plant, but are processed differently. For black tea, the leaves are processed in such a way as to allow fermentation, resulting in the dark brown color. For green tea, the leaves are processed and dried in such a way as to avoid fermentation. Oolong is partially fermented. here's a flow chart which outlines each: http://www.teatalk.com/general/steps.htm

Personally i love green tea but like many other herbal tea's there are many cases and different reason's why to drink tea such as green tea lifespan, curing you of many diseases such as the cold The basic difference between green tea and black tea (the more commonly seen variety) is in the fermentation. Green tea leaves are preserved by various techniques such as steaming and baking right after being picked; whereas black tea leaves are exposed to the air for a length of time and then processed. This method gives green tea its unique color and also helps retain one vital resource - the polyphenol. well tea since we all know are popular and mostly have been used by the asians. it has been commonly used by the north american's and europeans but the difference of black and green i think green tea would be healthier as to black tea which tea in general is caffenated anyway's diseases like cancer and heart disease. Antioxidants help by deactivating the free radicals and minimizing the amount of damage they've done or will do these can all be reduced by drinking tea such as green tea esp. and other types of herbal tea's

Kinds of Tea Tea can be divided into five basic categories: black, green, oolong, white and puerh. To answer your question are the two teas: Black tea is allowed to wither, which precedes a process called oxidation (sometimes incorrectly referred to as fermentation) during which water evaporates out of the leaf and the leaf absorbs more oxygen from the air. Black teas usually undergo full oxidation, and the results are the characteristic dark brown and black leaf, the typically more robust and pronounced flavors of black teas, and, when brewed appropriately, a higher caffeine content compared to other teas (50-65% of coffee, depending on the type and brewing technique). Green tea is allowed to wither only slightly after being picked. Then the oxidation process is stopped very quickly by firing (rapidly heating) the leaves. Therefore, when brewed at lower temperatures and for less time, green teas tend to have less caffeine (10-30% of coffee). Greens also tend to produce more subtle flavors with many undertones and accents that connoisseurs treasure. Other Tea info: Oolong tea is allowed to undergo partial oxidation. These teas have a caffeine content between that of green teas and black teas. The flavor is typically not as robust as blacks or as subtle as greens, but has its own extremely fragrant and intriguing tones. It is often compared to the taste and aroma of fresh flowers or fresh fruit. White teas are the most delicate of all teas. They are appreciated for their subtlety, complexity, and natural sweetness. They are hand processed using the youngest shoots of the tea plant, with no oxidation. When brewed correctly, with a very low temperature and a short steeping time, white teas can produce low amounts of caffeine. Puerh is an aged black tea from China prized for its medicinal properties and earthy flavor. It is perhaps the most mysterious of all tea. Until 1995 it was illegal to import it into the U.S., and the process of its production is a closely guarded state secret in China. It is very strong with an incredibly deep and rich flavor, and no bitterness, and an element that could best be described as almost peaty in flavor. There was some info about white, green, and black teas in the AICR Science Now, Fall 2004. Here is part of that article: Black tea comes from withered leaves that are allowed to fully absorb oxygen from the air, turning dark brown and black. This full oxidation process alters the chemical composition of the leaves, transforming certain phytochemicals. Black tea also has more caffeine than other teas. Oolong tea is also made from withered leaves, but these are only partially oxidized. The flavor and caffeine content lie between black tea and green tea. Steaming fresh leaves at high temperatures, then drying and rolling them, produces green tea. The short oxidation process preserves a phytochemical content similar to that of fresh leaves. White tea is the newest tea on grocery shelves and still is a rarity. For this tea, young buds and leaves are rapidly steamed and dried without oxidation. More polyphenols remain because of minimal processing. White tea has less caffeine than black and green teas.

Well black tea is black and green tea is green. AND green tea has way more health benefits. green tea prevents lung, colon, stomach, heart and breast cancer. reduces plaque buildup, blood cholesterol, and it helps to lose weight! in order to make a cup of green tea. by the Green Tea bags from a local drug store, get a HOT cup of water and leave the tea bag in for at least 3 minutes in order to get all the anitoxidants which help in health benefits. adding sugar or lemon should not alter the content of antioxidants but milk does alter it so i wouldn't use milk. for more information just look it up because there are A LOT more information on green tea.

yea..... same tree same leaves but green tea leave are smaller and not so dry