Tea should also be made differently depending on its type.Tea comes from the Camellia sinensis shrub, which is native to China and India. Green, black, white and oolong tea all come from the same plant. The difference is in how much the leaves are processed. According to Chris Brown, who conducts tastings and classes at the British Tea Garden and Rooftop Cafe in Tecumseh, Mich., it’s all about oxidation, which can be thought of as similar to what happens to a banana when it’s exposed to air. Black tea is highly oxidized, while green tea is less processed, and white...