Summary of Key Points
In Kangbao County, Hebei Province, some merchants have resorted to dipping the roots of cabbages in formaldehyde solution during transportation to reduce spoilage and save costs, which has raised public concerns about the safety of fresh produce. This issue highlights the dilemma faced by low-cost vegetables, such as cabbages: the high costs of cold-chain transportation and the significant losses that occur during normal-temperature transport. Formaldehyde, due to its low cost and easy availability, has become a common alternative. The incident also exposes the safety risks in the fresh supply chain, highlighting the need for collaboration among the government, businesses, and consumers to address these issues.
Detailed Analysis
1. Why do merchants use formaldehyde on cabbages? The dilemma of cost and loss
Cabbages are inexpensive, with wholesale prices of around 0.5 yuan per jin (about 225 grams), and even lower at the farm. Using cold-chain transportation would increase costs by 30%-50%, with transportation costs accounting for 20%-40% of the total price. For example, transporting cabbages from Shanghai to Hangzhou via cold-chain would cost 1,000 yuan, which is not economically viable for such low-value products. Normal-temperature transport, however, faces two major problems: cabbages generate heat when piled together, and they tend to wilt or spoil quickly in hot weather, resulting in losses of 15%-25% (compared to just 1.5%-3% with cold-chain transport). To ensure that cabbages remain fresh over long distances, merchants risk using formaldehyde, which saves on cold-chain costs and reduces losses, allowing them to sell them at a higher price.
2. How cost-effective is using formaldehyde for preservation? Much cheaper than cold-chain transport
Formaldehyde solution is easily available on e-commerce platforms for a very low price—500 milliliters (36%-38% concentration) can be purchased for just 8.5 yuan. It is estimated that 1 cubic meter of formaldehyde solution can preserve 80-100 cabbages, with the cost for treating 100 cabbages being only a few cents. In contrast, a 6.8-meter-long cold-chain truck transporting cabbages from Shanghai to Hangzhou would cost 1,000 yuan, not including other expenses like fuel. For merchants, formaldehyde represents a nearly “zero-cost” preservation method, making it attractive.
3. Are other fresh products at risk? Alternative purchasing methods are becoming more popular
The use of formaldehyde on cabbages is not an isolated case; similar issues may exist with other fresh fruits and vegetables. Some consumers opt for “short-chain” purchasing (from local farmers or organic markets), which reduces the number of intermediaries and associated risks, but the downside is higher prices and less convenience. Therefore, safety risks in the supply chain remain a major concern for the mainstream market.
4. How to solve the problem of formaldehyde-treated cabbages? Multi-party collaboration is essential
To address this issue, no single party can succeed on its own:
- Government: Strengthening targeted regulations is necessary. For example, the Ministry of Agriculture and Rural Affairs has improved the quality of cowpeas by establishing production standards, promoting scientific pesticide use, and enhancing testing. Similar measures should be taken for formaldehyde and other non-food substances, with increased inspections and stricter penalties.
- Businesses: Brands and retailers (such as Sam's Club and Hema) as well as fresh-food platforms (like Meituan and Dingdong) have influence over their supply chains. They can require suppliers to provide pesticide residue test reports and require intermediaries to sign compliance agreements during transportation.
- Consumers: They should pay more attention to the origin of their food and choose from reputable sources. If issues are discovered, they should report them to the relevant authorities.
Only through joint efforts from the government, businesses, and consumers can the safety gaps in the supply chain be addressed.
5. The core contradiction in fresh food safety: The challenge of preserving low-cost products
The problem with cabbages reflects the inherent contradiction in the supply chain of low-cost fresh products. Consumers want affordable and fresh food, but the low prices mean that merchants cannot afford high-cost cold-chain transportation and must use cheaper (and sometimes illegal) methods to preserve the products. To resolve this, solutions include technological innovations to reduce cold-chain costs, educating consumers to accept a higher price for fresh, affordable options, or providing government subsidies for the cold-chain transportation of low-cost fresh products. Otherwise, similar incidents are likely to continue to occur.