Opinion Piece: From 'Self-Certified Safe' to 'Complete Collapse' – The Chung Lian Carcinogenic Oil Scandal Exposes the Emperor's New Clothes of Food Safety

The incident triggered by Chung Lian Oils—the detection of benzopyrene (BaP), a Group 1 carcinogen, exceeding safety limits in soybean salad oil—has once again severely shaken Taiwan’s fragile food safety nerves. From Chung Lian’s self-certified compliance to downstream company Nanchiao proactively exposing the issue, from initially affecting a few major manufacturers to spreading across 257 downstream operators nationwide, and even impacting well-known food brands such as Guilin, Kwang Ta Hsiang, and Lao Hsieh Chen, as well as school lunch programs in Keelung’s elementary and secondary schools, this snowballing 'toxic oil map' not only reveals massive gaps in corporate self-management but also thrusts the authorities’ 'slow, piecemeal' crisis response back into the spotlight.

In response to this nationwide food safety crisis, we must move beyond mere political rhetoric and conduct a thorough, objective analysis centered on two core issues: 'blind spots in supply chain management' and 'outdated government governance thinking,' while proposing concrete transformation strategies.

Core Analysis: Three Blind Spots and Structural Crises Behind Chung Lian’s Toxic Oil

1. The Illusion of 'Paper Safety': Structural Flaws in Self-Inspection

As a flagship edible oil manufacturer with capital exceeding NT$30 million, Chung Lian claimed to have strengthened government-mandated biannual inspections to quarterly checks, with April’s report showing compliance. Yet, the same batch of oil was found to contain超标 carcinogens when tested by downstream company Nanchiao. This absurd scenario—'large manufacturer self-tests as合格, downstream testing fails'—is a slap in the face to corporate self-regulation.

Two fatal structural risks lie beneath:

Sampling Technical 'Blind Spots':

In mass production (in this case, up to 1,300 metric tons), oil stored in large tanks may become non-homogeneous due to temperature fluctuations during different production phases or batch variations in raw soybeans (e.g., uneven drying heat on soybean skins before import). If Chung Lian sampled only from specific fixed points, it created a 'tunnel vision' blind spot.

Moral Hazard from Conflicts of Interest:

When inspection authority rests entirely with the producer, there is inherent tension between human judgment and commercial interests—quality control standards in labs, instrument calibration, or selective sampling to meet shipping deadlines. This proves that 'self-inspection,' without regular, independent third-party retesting, is merely comforting 'paper safety' in critical moments.

2. The Invisible Killer: Systemic Risks of Industrialized Processing

The detected 'benzopyrene (BaP)' is a Group 1 carcinogen, typically formed from incomplete combustion or thermal decomposition of organic matter at high temperatures. The two causes analyzed by the Food Safety Division—excessively high processing temperatures or abnormal drying procedures of imported soybeans in the country of origin—point to a harsh reality: in a highly industrialized food processing industry obsessed with maximum output, even minor deviations in operational parameters can instantly turn food into poison.

Global supply chains for bulk commodities like soybeans are long and difficult to trace. If the problem originated in foreign drying processes, it means Taiwan’s large oil manufacturers have superficial oversight at import sources and lack defensive capabilities against critical risk substances.

3. The TFDA’s '20% Processed Food Exemption from Recall': A Suffocating Ostrich Policy

At the outbreak of the incident, nothing angered the public and media more than the TFDA’s tiered management policy, justified by a '2018 Food Risk Assessment,' stating that if the proportion of contaminated oil in processed food is below 20%, 'preventive recalls are not required, but businesses must proactively disclose information.'

This 'salami-slice' risk management completely contradicts public sentiment. For consumers, a carcinogen is a carcinogen. Carcinogen intake is cumulative—how can anyone accept that their meatballs, dumplings, or bread contain 'only 19% carcinogenic oil'?

The policy’s initial reversals and ambiguity failed to reassure the public. Instead, it dragged down the credibility of downstream brands (like Guilin and Kwang Ta Hsiang) that complied with regulations, creating a massive trust deficit in the government’s commitment to food safety.

Rational Recommendations: Moving Beyond Reactive Food Safety, Rebuilding Three Lines of Defense

Facing this toxic oil crisis that has spread to schools and households nationwide, both central and local governments, as well as the entire food supply chain, must reflect deeply and implement fundamental reforms across three dimensions:

1. Corporate Side: From 'Compliance Mindset' to 'Full Traceability and Independent Re-Testing'

Large edible oil manufacturers can no longer treat 'quarterly self-inspection合格' as a get-out-of-jail-free card.

Establish Dynamic and Random Sampling Mechanisms:

For high-risk process-derived toxins like benzopyrene, multi-point, random dynamic sampling must be conducted at production line outlets and different depths of storage tanks, abandoning the traditional static approach of 'one test per declared batch.'

Mandate External Third-Party Dual Re-Testing:

Food manufacturers above a certain capital threshold should have a portion of their key quality control inspection reports independently verified by nationally accredited third-party laboratories. This external objective force breaks internal systems prone to manipulation or blind spots.

Contractual Risk Management at the Source:

For raw materials like imported soybeans, drying methods and temperature monitoring in the country of origin must be mandatory clauses in procurement contracts. On-site pre-shipment inspections should be conducted by personnel or international inspection agencies (e.g., SGS) abroad, rather than waiting to detect issues after materials arrive at Taiwanese factories.

2. Government Side: Abandon Cold-Hearted Numerical Management, Establish a 'Zero-Tolerance Preventive Mechanism'

The TFDA must understand that food safety is not merely statistics or mathematical formulas—it is political science intertwined with public psychology and social trust.

Revise the Outdated '20% Processed Food Exemption from Recall' Clause:

For Group 1 carcinogens like benzopyrene (BaP), which are cumulative and have no safe threshold, any downstream processed product using oil confirmed to be contaminated due to 'intentional or major process violations' must undergo preventive full recalls, regardless of proportion, until safety is verified. The government should not calculate 'diluted toxicity' for non-compliant upstream manufacturers—this is the worst compromise on national health.

Build a Transparent and Real-Time 'Food Safety Blockchain Map':

The chaos in publishing the affected list reveals that information on 257 impacted businesses still relies on traditional inter-agency paperwork from local health bureaus. The central government should mandate that bulk material and oil producers digitize and real-time track all shipment destinations. Once an anomaly occurs at the source, the system should instantly lock down all downstream products and automatically issue alerts—instead of leaving the public terrified days later, cross-referencing dense PDF tables after news breaks.

3. Consumer and Social Side: Support 'Whistleblowers' and Use Consumption Choices to Reward Ethical Brands

The only silver lining in this storm was downstream manufacturer 'Nanchiao' reporting the abnormal test results legally instead of covering it up or staying silent, which ultimately exposed this massive scandal.

Improve Legal Protection and Reward Mechanisms for Food Safety Whistleblowers and Self-Reporters:

The government should publicly commend and legally protect companies like Nanchiao that actively manage quality and expose wrongdoing. They should be exempt from potential administrative penalties arising from reporting, encouraging a healthy ecosystem of 'mutual supervision and collective detoxification' within the supply chain.

Promote the Normalization of Consumers’ 'Right to Know About Food Safety':

The public should cultivate the habit of checking food provenance and, through collective consumer power, phase out processed brands that prioritize price over proper sourcing and traceability. Instead, support ethical enterprises willing to publish inspection reports and invest high costs in rigorous raw material control.

Conclusion

The Chung Lian carcinogenic oil scandal is a mirror in Taiwan’s 2026 food safety history. It reflects the laxity of major manufacturers torn between production capacity and quality control, and the rigidity and conservatism of bureaucratic governance in risk management.

The line of food safety defense has never depended on how thickly regulations are printed, but on whether policymakers prioritize 'protecting industrial output' or 'safeguarding national health' when facing crises.

We hope the judicial and administrative investigations will truly identify the 'overheated process' or 'toxic soybean skins,' and that the TFDA will thoroughly cleanse the stigma of 'legalizing diluted toxic oil,' regaining the Taiwanese people’s trust in their dining tables through firm action and transparency.

*The author is Chairman of the Chinese International Public Affairs Participation Association and Chairman of the Taiwan International Cultural and Educational Public Welfare Association.