Testing, Testing A series where we methodically and obsessively try new products to tell you if they’re worth it so you don’t have to do all that work yourself. Read more reviews here . Photo: Emma Wartzman I feel confident in saying that if you ask pretty much anyone what the best jarred tomato sauce is, they’ll answer, “Rao’s.” The product originated out of the elusive East Harlem–based restaurant that opened in 1986, hitting shelves in 1992 (it was acquired by Campbell Soup Company in 2023).