Insider visited the Lea & Perrins factory to see how Worcestershire sauce is made. It has been making the sauce for nearly 200 years. The sauce was made by chemists John Wheeley Lea and William ...

And thus was born Worcestershire sauce, that sweet, salty, tangy, umami-rich condiment that now serves as many chefs' secret ingredient. Since 1837, when Lea and Perrins first began selling ...