With its irresistibly buttery flavor, the Hass sets the avocado standard. It also wins the popularity contest, making up 75% of the American crop. A luscious slice of Hass avocado really pumps up the taste of burritos, burgers, salads, and sushi rolls. Plan ahead! Our avocados arrive firm. They'll ripen in 3-5 days at room temperature — just like a banana — or speed up the process by storing them in a paper bag. To slow ripening, store in the fridge. When your avocados yield to gentle pressure, they're ready.