Peanut butter presents the greatest hazard for peanut allergic children. It is a particularly sticky product and causes widespread contamination of:

• knives, food preparation surfaces, kitchen sponges and barbeque plates
• butter and margarine tubs (from knives used to spread peanut butter
• door handles, taps, toys playground equipment, school desks
• hands, lips, teeth, bread and moustaches 

Popular snack-packs of peanut butter can be messy when eaten by young children, leaving them with contaminated hands, face and clothing. Coming into contact with a peanut allergic child in the classroom or playground can then cause a reaction.