A taste test was conducted to evaluate various marinara sauces, with some outlets testing a specific number of sauces, including 10, 13, 19, and 24. The results appear to vary, but one sauce was found to stand out as a clear winner, with some describing it as tasting 100% homemade. The tests seem to be comparing store-bought sauces, including Rao's, to determine which one is the best.