Most people I know typically grab a bottle of Heinz's ketchup when they go shopping, but that doesn't mean there aren't other contenders.
I tried six brands of the condiment — Heinz, Primal Kitchen, Sir Kensington's, O Organics, Annie's, and Huy Fong's Sriracha — and evaluated them on their consistency, sweetness, tartness, acidity, and overall flavor.
I tasted each ketchup on its own and with a bite of a burger.