Where the tea bag actually came from
The famous story involves a New York merchant, silk sample pouches, and customers brewing them by mistake. The documented origin is a US patent granted in 1903 to two women in Milwaukee.
Patented 1903; the Sullivan story is set around 1908
Sources disagree. Sources give different dates and the disagreement has not been resolved. The conflict is reported rather than adjudicated.
The patent has a filing and grant date and is a public record. The Sullivan account has no contemporary documentation and is traceable mainly to much later retellings, which is why the two are given together rather than the second being presented as the origin.
Disputed. Specialists disagree. TeaHQ does not pick a winner.
The version that circulates
That Thomas Sullivan invented the tea bag by accident in 1908.
What the evidence carries. That a granted patent for a single-cup leaf holder predates the story by several years and is documentary; that the Sullivan account rests on later retelling; and that neither is the reason bagged tea became normal, which is a mid-twentieth-century industrial change.
What happened
Lawson and Molaren patented a stitched mesh pocket holding enough leaf for one cup, explicitly to avoid waste and the need for a pot. Separately, and later, a widely repeated story holds that Sullivan sent samples in small silk bags and that customers steeped the bags whole. Commercial bagged tea developed through the 1920s and became dominant in Britain only after machine production and CTC leaf made it cheap, which is a post-war story.
Why it matters
The tea bag is the most consequential packaging decision in the subject — it determines leaf grade, manufacture, extraction time and what most of the world tastes. The origin story matters less than the timeline: the format existed for half a century before it took over, and what made it take over was cheap granular leaf and a machine that could fill bags fast.
Who was involved
Roberta C. Lawson and Mary Molaren
personFiled and were granted a US patent for a mesh 'tea leaf holder' for single-cup brewing
Thomas Sullivan
personNew York tea merchant to whom the accidental-invention story is attached
Connected events
- The early 1930s — Crush, tear, curl
- From the 1950s, with the change largely complete by the 1980s — Britain switches to bags
What this touches
Compiled from published sources by people who are not historians of this region or period. Where accounts conflict the disagreement is reported rather than settled.