Since I don't eat my own baking, I am very careful of what I put nuts or nut byproducts in. I make mini cranberry/orange pumpkin breads for the church fair every year. Six have nuts and has a label on them. Six without. And I make sure the ones with nuts is double wrapped so it doesn't affect the simpler ones without nuts. They are always the first food item that they sell out. I have three bowls for my mixer. The ones with nuts get mixed in a separate bowl. And I make sure I clean the paddle in hot soapy water and dry well, before using it again for the nutless ones.