Worcestershire sauce 1800s were found dumped in a skip in 2009 by company accountant Brian Keogh. The documents are to be placed on display at the Worcester City Art Gallery & Museum. Anchovies in many Worcestershire sauces is a concern to people allergic to fish, vegans, other vegetarians and others who avoid eating fish. The "Codex Alimentarius" recommends that prepared food containing Worcestershire sauce with anchovies include a label warning of fish content although this is not required in most jurisdictions. The US Department of Agriculture has forced the recall of some products with undeclared Worcestershire sauce. Several brands sell anchovy-free varieties
Worcestershire sauce October 1897, Lea & Perrins relocated manufacturing of the sauce from their pharmacy to a factory in the city of Worcester on Midland Road, where it is still made. The factory produces ready-mixed bottles for domestic distribution and a concentrate for bottling abroad. In 1930, the Lea & Perrins operation was purchased by HP Foods, which was in turn acquired by the Imperial Tobacco Company in 1967. HP was sold to Danone in 1988 and then to Heinz in 2005. Due to a shortage during World War II, Lea and Perrins switched from using soy sauce to hydrolyzed vegetable protein.