> To be effective, warnings like this have to be MANDATED on the item in question, and FORBIDDEN when not present. That already happens for foods. The solutio

> To be effective, warnings like this have to be MANDATED on the item in question, and FORBIDDEN when not present. That already happens for foods. The solution for suppliers is to intentionally add small quantities of allergens (sesame). [1] By having that as an actual ingredient, manufacturers don't have to worry about whether or not there is cross contamination while processing. [1] https://www.medpagetoday.com/allergyimmunology/allergy/106521 https://www.medpagetoday.com/allergyimmunology/allergy/10652...