Test results on formaldehyde in Noodlefish---Hong Kong

Test results on formaldehyde in noodlefish

The Centre for Food Safety (CFS) recently conducted a targeted food surveillance exercise to assess the situation of formaldehyde in noodlefish.

Results showed that one of the 10 samples taken contained formaldehyde at a level of 1,200ppm. The samples had been collected from retail outlets for testing.

"We believe formaldehyde was added as a preservative after the fish were caught, or during transportation or storage," a CFS spokesman said today (December 17).

"At the level of formaldehyde detected in the noodlefish sample, health effects such as abdominal pain and vomiting and kidney problems cannot be ruled out for high consumers," the spokesman said.

"Consumption of noodlefish by the general public with the same detected level as this sample on a long-term basis might have effects on the gastro-intestinal tract. The main health concern of formaldehyde is its cancer-causing potential through exposure via inhalation. According to the World Health Organization, there is not sufficient evidence showing that formaldehyde is carcinogenic through exposure through the oral route."

The CFS called on the trade not to add formaldehyde to fish or other marine products. Under the law, formaldehyde is not permitted for use as a food preservative. Contravention of the law could lead to a maximum fine of $50,000 and six months' imprisonment.

"Regarding the unsatisfactory sample, the CFS issued warning letters to the stall operator concerned asking him to stop selling the affected products. We are tracing the source of the fish in question. We are also collecting sufficient evidence for prosecution," he added.

The CFS also advised the public to take note of the following when buying or cooking marine products (e.g. noodlefish):

* Avoid buying noodlefish that are stiff (formaldehyde could stiffen flesh of fish);* Choose only fish that are fresh and avoid those with an unusual smell;* Wash and cook marine products thoroughly as formaldehyde is water soluble and could dissipate upon heating.