Tim Hortons takes food safety very seriously and aims to accommodate customers with various dietary needs. However, it is important to note that while some of their products may be nut-free, the possibility of cross-contamination exists due to shared equipment and preparation areas. This means that products could potentially contain traces of nuts even if they do not explicitly contain them as ingredients. Tim Hortons provides information about their menu items, including allergens, which can typically be found on their website or in-store. Customers who have severe nut allergies should exercise caution and review this information carefully before making a purchase. It is always a good idea to inquire with the staff for the most current and specific details regarding allergens in food items.