Have you looked at the ingredients in a jar of commercial processed tomato sauce lately?
All food that is processed has preservatives added to it to keep a long shelf life, and let’s not forget that most jarred tomato sauces are also heavy-handed with unnecessary amounts of sugar, salt and oils. Call me crazy but I just do not see the point of adding sugar to a tomato sauce? One also has to consider whether the ingredients used are sprayed with chemicals/pesticides and are in fact Genetically Modified Organisms -GMO’s.