Food allergens are substances in food that can trigger allergic, sometimes life-threatening reactions in predisposed individuals. According to scientific reports, approximately 2-3% of adults and 6-8 % of children are affected by food allergies today. Food allergens may be present as an ingredient but also inadvertent via cross contamination when sharing food processing machines. Due to their potential harmful nature, the presence of certain allergens in food is regulated in EC directive 1169/2011, with Annex II listing those allergens that are required for notification by the manufacturer.