SORU: aşağıdaki parçaya göre cevaplayınız
One of the reasons why people in Britain did not use tea bags until the middle of the 20th century might be that ----.
Eager to boost orders for his teas, New York tea
merchant Thomas Sullivan devised a new method of
distributing samples of tea to his customers. He put
them into small silk bags, making them easy to ship and
less messy for the recipient to unpack. Some customers
did not bother opening the cloth bag and simply poured
boiling water over them. Sullivan was overwhelmed with
orders for more tea packaged in this way. Responding
to suggestions that the silk material was very thin,
Sullivan used cotton instead and began to sell the bags
commercially. The patent for the tea bag was registered
by Sullivan in 1903. By 1920, tea bags were in wide use
by the catering trade in the US. Later, paper was used
instead of cotton, and a fine string and decorated tag
were sometimes added, making them more convenient
for drinkers making a single cup. The American market
for tea bags was well developed by the time they were
introduced into Britain several decades later by Joseph
Tetley and Company in 1953. It is not clear whether this
delay was a result of wartime shortages of materials, or
of initial resistance to change on the part of the British
tea-drinker. However, once they were launched, tea
bags soon became popular in Britain, joining the ranks
of the many labour-saving products that emerged in the
post-war period, offering convenience and saving time.