"It is not very likely that liquor producers add plasticizers on purpose to improve the taste, since the amount is too small to change the flavor," Liu said.
Liu noted that currently there is still no concrete standard in terms of plasticizer for the liquor industry. But the country has clear standards on quantities of plasticizer for the food industry.
The quality watchdog in Hunan Province, where Jiugui Liquor is located, said in a statement released Tuesday evening that the investigation so far shows no evidence proving Jiugui has intentionally put plasticizer in its products.
"We'll continue our investigation and any illegal activity will be punished according to the law," Hunan's Administration of Quality and Technology Supervision said on its website.
Other liquor companies have been attempting to distance themselves from the scandal. Wuliangye, one of China's top liquor brands, told the media Tuesday that although the scandal has been impacting the liquor industry, Wuliangye hasn't been affected much because the company is not using any material or equipment that contains plasticizer.
The China Alcoholic Drinks Association has called for domestic liquor producers to reduce the use of plastic during production to avoid putting excessive amounts of plasticizer in liquor in the future.
Landmark building should respect the public's feeling