Every kitchen in Britain is likely to have three things in the cupboard and fridge: milk, tea and bread. Three staples of the British diet, we often take these simple foods for granted. But do we really know how they're produced? Is there a difference between cheap supermarket brands and artisan products? Are they healthy? Are they sustainable? And why is it that we've come to rely so heavily on these ingredients over the centuries? Tickets include food and drink, along with tastings from Borough Market traders.