From diners to grocery shelves, Heinz ketchup has always been served at room temperature but some of its fans actually prefer it cold. So, in time for summer, Heinz is launching Heinz Cold Ketchup, same slow-pouring ketchup, just colder with a temperature-activated label that turns icy blue when it’s perfectly chilled. Consumers can find bottles of Heinz Cold Ketchup in specially marked display fridges at select grocery stores.