Before revision: Black tea Black tea, produced from leaves whose oxidation has been prolonged to completion, is a marginal product in Japan in the 2010s, even though it has a long history since it was first developed in the second half of the 19th century for export purposes.
After revision: JapaneseBlack tea Black tea, produced from leaves whose oxidation has been prolonged to completion, is a marginal product in Japan in the 2010s, even though it has a long history since it was first developed in the second half of the 19th century for export purposes.