‘Flavor is under siege in this country’: how food in America lost its taste

In the last century, industrialized farming has killed off delicious food - but a brigade of chefs, breeders and farmers are fighting to bring it back

Bill Tracy is clearly not one to brag, but after a while, it seems he just can't help himself. I did come up with something absolutely amazing actually," he says softly. Really quite amazing."

Tracy has spent the last 40 years in the fields of Wisconsin as one of the US's leading sweetcorn breeders, tasting up to 300 ears a day in search of the perfect corn that might one day sizzle on barbecues across the country.