UK tea and coffee retailer Whittard of Chelsea has said it is planning to launch a new chain of teashops in the US to compete with the Starbucks coffee chain. Whittard recently opened its first in-store teashop at an outlet of US department store chain Marshall Field's. "The US is a coffee culture but we are seeing a swing to tea. The Minneapolis store is like a tea version of Starbucks and it is taking twice the revenue that part of the Marshall Field's store managed before," chief executive Richard Rose was quoted by the Times as saying.