Hong Kong’s Centre for Food Safety (CFS) has ordered an immediate halt to sales and a product recall of Taiwan’s Jin An Ji Spicy Pork Floss after tests revealed it may contain Sudan Red, an industrial dye banned for human consumption. This alarming discovery has reignited public concern over illegal food additives and their hidden health risks.
The CFS issued the urgent directive in early March 2024, prompting retailers across Hong Kong to pull the popular snack from shelves. The agency’s swift action followed laboratory analysis suggesting the presence of Sudan Red, a synthetic colorant strictly prohibited in food products. For many consumers, the news was both shocking and confusing: What exactly is Sudan Red, and how dangerous is it?
According to the CFS, Sudan Red refers to a group of synthetic azo dyes—including Sudan Red I, II, III, and IV—originally developed for industrial applications such as coloring plastics, textiles, and shoe polish. These dyes are not approved for food use anywhere in the world. The International Agency for Research on Cancer (IARC) evaluated these four variants in 1987 and classified them as “not classifiable as to carcinogenicity to humans.” However, the agency noted sufficient evidence that Sudan Red can cause cancer and genetic mutations in laboratory animals.
Taiwan-based registered dietitian Kao Min-Min recently addressed public fears in a widely shared social media post. She explained that while no definitive human carcinogenicity has been proven, excessive consumption of Sudan Red poses real risks. “Repeated intake can lead to liver and kidney damage, skin allergies, and potential long-term harm,” she warned. The dye is particularly dangerous because it accumulates in fatty tissues and is slowly metabolized, meaning even small amounts over time can be problematic.
Why Is Sudan Red Used in Food?
Unscrupulous manufacturers add Sudan Red to products to achieve a vibrant, appetizing orange-red hue that mimics the natural color of high-quality ingredients. This cheap industrial dye has been detected in a range of foods worldwide, from chili powders to salted egg yolks. Dietitian Kao identified four categories of food particularly vulnerable to adulteration:
- Duck egg yolks – often used in mooncakes and pastries
- Chili powder – to enhance redness and perceived spiciness
- Fermented bean curd – a common condiment in Asian cuisine
- Seasoning powders – including spicy medicinal soup mix, Xinjiang cumin powder, and yellow curry powder
What Should Consumers Do?
The CFS advises the public not to panic. Based on current data, consuming eggs at normal dietary levels poses a low risk of serious health effects. The agency’s key recommendations are simple but vital:
- Maintain a balanced diet to avoid overexposure to any single contaminant or additive through habitual consumption of specific foods.
- Stay informed by checking CFS updates and product recall notices regularly.
For those concerned about potential contamination, reading ingredient labels carefully and purchasing from reputable brands with transparent supply chains can reduce risk. Consumers who have purchased the recalled Jin An Ji Spicy Pork Floss should stop eating it immediately and return it to the point of sale.
The Bigger Picture
This incident is not an isolated one. Sudan Red has surfaced in food scandals across Asia and Europe for over two decades, from chili products in the UK to eggs in China. Despite international bans, its low cost and high coloring power continue to tempt violators. The CFS has stepped up surveillance on imported food items, and experts urge stricter enforcement and harsher penalties for offenders.
For Hong Kong’s food-loving public, this recall serves as a stark reminder: vibrant color does not guarantee quality. The next time a snack looks too red to be real, it just might be.