Nine members of the same family in China died after eating spoiled noodles that had been kept in the freezer for nearly a year, authorities said.

The family living in the northeast province of Heilongjiang ate the homemade corn noodles for breakfast on Oct. 5, according to the Independent, citing a state-run media report.

Chinese noodles with braised pork chop

Chinese noodles with braised pork chop (iStock)

The noodles, made from fermented corn flour, are a common dish in the region.

But hours after chowing down, those who consumed the noodles fell ill, the report said.

Eight of them had been confirmed dead by Oct. 11, and the ninth member was hospitalized but ultimately died on Monday, the outlet reported.

The cause of their deaths was poisoning from bongkrekic acid, a respiratory toxin detected in the noodles, which had been frozen for several months, the outlet reported.

Gao Fei, director of food safety at the Heilongjiang Centre for Disease Control and Prevention, said the toxic substance can often be fatal.

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“It can cause serious damage to many human organs including the liver, kidneys, heart, and brain,” Gao said. “Currently, there is no specific antidote. Once poisoned, the fatality rate can be as high as 40 to 100 percent.”

The National Health Commission issued a warning Tuesday to avoid making and eating foods with fermented rice and flour, the state-run outlet China Daily reported.

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“Using fresh and unspoiled food materials and frequently changing water when making food can reduce the risk of contamination, but it is best to avoid making and ingesting foods made of fermented grain entirely for safety concerns,” the advisory said.

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