Proof: When celery was in vogue

Proof from America's Test Kitchen is a new-ish show trying to solve some food mysteries. Like should you put ketchup on burgers, and how do odd jellybean flavours get designed?! Writer and producer Maya Kroth shares her love of celery with Proof's host Bridget Lancaster, including stories from celery's golden age in Victorian times when it was a status symbol costing more than caviar! And in 'Beanboozeld, Part 2', Sara Joyner investigates how people design weird jelly bean flavours, with her research opening up a rabbit hole into the global food flavouring industry, and its history from about 1850 onwards.