Minn. R. 1550.0370
The use of boric acid or borates, salicylic acid, or salicylates, formaldehyde, sulfurous acid or sulfites, hydrofluoric acid or fluorides or any added poisonous or deleterious ingredient which may render a food product unwholesome, injurious, or detrimental to health is prohibited by law. Exception will be made in the case of food products found to contain sulfurous acid as the result of the application for bleaching purposes of the fumes of burning sulfur to those food products which contain sugars or other substances with which sulfurous acid may combine, providing that the total amount of sulfur dioxide in the finished product does not exceed 350 milligrams per liter or 350 milligrams per kilogram of the total product and of which not over 70 milligrams exists as free sulfur dioxide.
Minn. R. 1550.0370
Statutory Authority: MS s 31.101