Citrus juicers, as their name suggests, juice citrus fruits. So lemons, limes, oranges and grapefruits, and all similar fruits can be used in this device.A centrifugal juicer however can juicemostnon-citrus fruits,aslongas thefruit hasjuice to extractthen acentrifugal juicer can usually juice it - for example apples and berries.Fruits such as Bananas cannot be juiced.