Chinese authorities have initiated an investigation following reports that formaldehyde was illegally used to keep cabbages fresh. The practice, if confirmed, poses a significant health risk to consumers. Formaldehyde is a highly toxic chemical typically used in embalming and industrial processes, and its presence in food is strictly prohibited. The investigation was prompted by concerns raised regarding the cabbage supply in certain regions of the country. Officials are working to determine the extent of the problem and identify those responsible for the alleged misconduct. This incident underscores ongoing challenges with food safety regulations and enforcement within China's vast agricultural sector, raising public anxiety about produce quality. Penalties for using harmful chemicals in food production are expected to be severe if violations are found.