Tree nuts and peanuts are mixed in the kettle and always done separately. Most fudge flavors will say if it includes nuts or tree nuts. Rocky Road and Carrot Cake are exceptions and they both include walnuts. If you are unsure about ingredients please contact us here 540-553-1472 or email@example.com for a complete ingredients list. All fudge is made in a kitchen where there are peanuts and tree nuts stored and processed.