The rice purchased using a lower exchange rate of US dollar was supposed to be high-quality Indian rice but was discovered to be contaminated with cheaper varieties.
The financial implications of the blunder are significant, sparking investigations and raising critical questions about the oversight and approval processes behind such large-scale imports.
"This rice was not high-quality. When I saw a sample, it was clear that most of it was a different variety," Karim Akhavan, President of the Iranian Rice Importers Association told Tasnim News Agency.
He said the mixture of inferior rice with the intended high-quality variety indicated serious mismanagement.
An analysis of the rice by a German institute confirmed the presence of impurities, though the precise level of contamination remains unclear.
The ministry of agriculture confirmed that the rice had been mixed with cheaper varieties by the foreign seller, but it stopped short of specifying what types of rice were used.
"This is a matter for Jahad Company, which is responsible for the imports," said Ahmad Khani Nozari, the Ministry's Deputy of Commerce as he tried to shift the responsibility away from the ministry.