What is the truth about ‘animal fat’ in Tirupati Laddus? Under what circumstances can a Prasad sample report be wrong

There has been a furore over the fact that the ghee from the world-famous Tirupati Balaji temple in Andhra Pradesh contained fish oil and animal fat. The Andhra Pradesh government has claimed that adulteration was found in the ghee used to make laddus. This adulteration was due to the ghee contract awarded by the previous