I have a little girl with me with a peanut allergy. She's only ever broken out in a rash once but still has an epipen at my house. She's only here 2 ams a week and honestly I'm just super careful. I disinfect her eating space and make sure that she always washes before eating. There are some brands that eliminate oils including peanut oils off of skin and surfaces. But... there are very few items with nuts in them in the house as my daughter is sensitive. Any member of the family who opens a nut product does so in a designated spot and washes afterwards. Now, normally I wouldn't accept a nut allergy because of the liability but this was a special circumstance. I always tell parents that I will not serve peanut products but that I will also never claim to be peanut free. If anyone feels the need to bring in outside food ie, at halloween, it will NOT be used without my being able to see a guaranteed list of ingredients.