Adulterated products poses great dangers to the producers of related products as well. There is no way you could convince the final consumers once adulterated products are discovered. That is why it is good to present and brand your product in foolproof package which would make it difficult to be adulterated.This message is specially directed towards those that are in the buying and selling business. I understand the quality control is not in your hands but try everything to ensure what you are bringing to sell to the final consumers are quality.
No one knows the producer. They know the retailer that people would accuse kf selling fake products. It is the retailer that people would stop buying from.