History
The first tea bags were hand-sewn silk bags and tea bag patents date as early as 1903. First appearing commercially around 1904, tea bags were successfully marketed by the tea and coffee shop merchant Thomas Sullivan from New York, who shipped his tea bags around the world. The loose tea was intended to be removed from the bags by customers, but they found it easier to prepare tea with the tea enclosed in the bags. Modern tea bags are usually made of paper fibre. The heat-sealed paper fiber tea bag was invented by William Hermanson, one of the founders of Technical Papers Corporation of Boston. Hermanson sold his patent to the Salada Tea Company in 1930.
The rectangular tea bag was not invented until 1944. Prior to this tea bags resembled small sacks.
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