Green Teas are fresh tea leaves with very little processing. They do not undergo the oxidation process. The leaves, after being plucked, are allowed to wither for a few hours. They are then steamed or panned to remove the moisture and trap the antioxidants within the leaves. The flavours of the green tea changes from region to region; with more grassy-flavoured green teas coming from Japan, peachy and chocolaty teas from China and gunpowder flavours coming from Taiwan.