China Orders Nationwide Probe After Wholesalers Found Dipping Cabbage in Formaldehyde

Chinese authorities have ordered a local investigation and nationwide market inspections after confirming that wholesalers were dipping cabbages in a formaldehyde solution to keep them fresh during transport. Police have taken legal action against the individuals involved BBC News.

An environmental blogger first released footage last week showing cabbages being submerged in a liquid before being loaded onto trucks. Officials in Hebei province have verified the footage, which showed activity in Kangbao County, Zhangjiakou City BBC News.

Three central-level agencies — the State Council Food Safety Office, the Ministry of Agriculture and Rural Affairs, and the State Administration for Market Regulation — instructed local authorities to investigate, handle the matter strictly under the law, and trace where the affected cabbages ended up BBC News. Local authorities in Kangbao County said in a Saturday statement that any illegal or non-compliant practices will be dealt with strictly to protect the vegetable supply BBC News.

On August 23, 2026, Chinese authorities ordered the probe and nationwide market check after the reports surfaced Global Times. China's food safety authorities ordered nationwide inspections of perishable vegetables the same day China Daily. China's central government ordered a special investigation into the matter Korea Herald.

Formaldehyde is a colourless chemical classified as a carcinogen — meaning it can cause cancer. Using it to preserve food freshness is strictly prohibited in China. The American Cancer Society notes that exposure to relatively high quantities of formaldehyde in some workplaces has been linked to certain cancers in humans, though the effects of exposure to small amounts remain less clear BBC News.

Police have taken legal action against the individuals involved, according to Chinese state media. Investigators will determine how widespread the formaldehyde-cabbage practice is and trace affected vegetables BBC News.

Officials are carrying out spot checks on markets across China to prevent panic and restore confidence BBC News. Xinfadi market in Beijing, a major source of fresh produce in the capital, said it had investigated the source of its cabbages and found that none of the affected vegetables had entered its market BBC News. An editorial in the People's Daily said the wholesalers focused solely on immediate profit while disregarding consumers' lives and health, crossing a legal red line and breaching a moral bottom line BBC News.

The stakes extend well beyond domestic consumer confidence. China is the world's largest producer of cabbages, producing over 30 million tons each year — nearly half of the global total. Most exports go to neighbouring Asian countries, with Vietnam, South Korea, and Russia among the largest destinations BBC News. Any breakdown in supply-chain integrity, then, has direct implications for food safety across the broader Asian region.

This is not the first time formaldehyde has been used on cabbages in China. Reuters reported in 2012 that formaldehyde-laced cabbage was found in Shandong province. Cabbages treated with formaldehyde stay fresh for roughly a week Reuters. On June 19, China's Food and Drug Administration issued a notice regarding the illegal use of formaldehyde to preserve cabbage at a vegetable station in Dingzhou, again strictly prohibiting the practice BBC News.

The broader context here is that the recurrence of this practice more than a decade after the Shandong case suggests the economic incentives driving it remain structurally embedded in the agricultural supply chain. Formaldehyde treatment extends shelf life at minimal cost, and the perishable nature of cabbage during transport creates persistent pressure on wholesalers to find unauthorised preservation methods. The regulatory response, involving multiple central-level agencies and nationwide spot checks, reflects an effort to contain reputational damage and reassure both domestic consumers and trading partners. Whether the current measures will prove more durable than the 2012 response is an open question.