Women Sound Alarm as Vendors Fry Polyethylene Nylon in Plantain Chips

In Lagos this week, a concerned mother has sparked a heated debate after witnessing vendors fry polyethylene nylon plantain chips in hot oil to achieve that coveted crunch. The practice, which appears to be spreading across informal markets in Ghana, Kenya and other African cities, raises serious food‑safety questions for consumers who enjoy the popular snack.

What is happening on the streets with polyethylene nylon?

Market stalls across Lagos Island, Accra’s Makola market and Nairobi’s Gikomba have reported a surge in vendors using clear polyethylene nylon sheets—normally sold for food packaging—to line frying pans. The plastic is briefly immersed in oil, then plantain slices are added, creating a glossy, ultra‑crispy chip that some customers describe as “extra crunchy”. While the visual appeal is undeniable, the health implications are anything but.

According to a recent interview with a Lagos resident who wishes to remain anonymous, the practice began when a vendor claimed the nylon prevented the plantain from sticking to the pan, reducing oil usage and increasing profit margins. Within weeks, other sellers adopted the method, citing faster turnover and higher sales. The trend has now caught the attention of consumer‑rights groups and health officials, who warn that heating plastic can release toxic chemicals.

Why the health concerns are real

Polyethylene nylon is a type of polymer commonly used in food‑grade packaging, but it is not designed to be heated to frying temperatures. When exposed to oil above 180 °C (356 °F), the material can break down, releasing substances such as bisphenol A (BPA), phthalates and other endocrine‑disrupting chemicals. Studies conducted in 2024 and 2025 across South Africa and Egypt demonstrated that prolonged heating of similar plastics leaches compounds that may affect hormone balance, fertility and even increase cancer risk.

In the Nigerian context, where regulatory oversight of informal food vendors is limited, the danger is amplified. Many consumers are unaware that the shiny coating on their plantain chips may be more than just oil. The lack of clear labelling and the informal nature of street food sales make it difficult for shoppers to make informed choices.

How the practice spread across Africa

While the phenomenon was first reported in Lagos, social media posts from Accra and Dar es Salaam show that the method has quickly crossed borders. A short video on TikTok, posted in August 2026, showed a Ghanaian vendor demonstrating the technique, captioned “secret to the crunchiest chips”. The clip amassed over 200,000 views, prompting vendors in neighbouring markets to replicate the process.

Regional trade fairs for street‑food entrepreneurs, such as the 2026 West African Food Expo in Abidjan, have also inadvertently contributed to the spread. Vendors exchange tips on cost‑saving measures, and the use of cheap, readily available plastic sheets fits the narrative of maximizing profit while keeping prices low for consumers.

Regulatory response and enforcement challenges

In Nigeria, the National Agency for Food and Drug Administration and Control (NAFDAC) issued a statement in September 2026 warning against the use of non‑food‑grade materials in cooking. The agency highlighted that while polyethylene nylon may be safe for packaging, it is not approved for direct contact with hot oil. NAFDAC’s spokesperson, Dr. Ifeoma Okeke, urged market associations to conduct spot checks and educate vendors on safer frying practices.

South Africa’s Department of Health has taken a slightly different approach, launching a public‑awareness campaign that includes radio jingles in isiZulu and Afrikaans, reminding listeners that “plastic does not belong in the pan”. In Ghana, the Food and Drugs Authority (FDA) announced plans to increase inspections at major markets, though budget constraints limit the frequency of checks.

What consumers can do to protect themselves

For shoppers, the first line of defence is vigilance. Look for vendors who use traditional metal or cast‑iron pans without any plastic lining. Ask questions: “Do you use any material to line the pan?” If the answer is yes, request to see the material. In many markets, vendors are happy to demonstrate their process, especially if they are confident that their method complies with health standards.

Another practical tip is to observe the colour and texture of the chips. Over‑crisped, overly glossy chips may indicate the presence of a polymer coating. When in doubt, choose packaged plantain chips from reputable brands that list all ingredients and processing methods on the label.

Industry perspective: balancing profit and safety

From a business standpoint, the allure of a faster, oil‑saving method is understandable. Small‑scale vendors operate on thin margins, and any technique that reduces waste can be the difference between profit and loss. However, the long‑term costs of a public health scare—loss of consumer trust, potential legal action, and damage to the informal food sector’s reputation—far outweigh short‑term gains.

Food‑technology startups in Nairobi and Lagos are already developing affordable, reusable non‑stick pans made from food‑grade silicone and ceramic coatings. These alternatives promise the same ease of release without the health risks associated with plastic. Early adopters report that while the initial investment is higher, the durability and consumer confidence pay off within a few months.

Looking ahead: policy and community action

Experts suggest that a coordinated effort involving regulators, market leaders and consumer groups is essential. In 2026, the African Union’s Food Safety Programme launched a pilot project in five countries—including Nigeria, Kenya and Tanzania—to train vendors on safe frying techniques and provide subsidised non‑stick cookware.

Community organisations, such as the Lagos Food Vendors Association, have begun self‑regulation by issuing a code of conduct that bans the use of any plastic in cooking. Members who violate the code risk expulsion, which can affect their ability to trade in certain markets.

FAQ

• Is frying polyethylene nylon in oil illegal? In Nigeria, it violates NAFDAC’s food‑safety guidelines, though specific legislation is still being drafted. Other countries have similar advisory notices.
• Can I still eat plantain chips that look extra crunchy? If you suspect plastic was used, it is safer to avoid them. Choose vendors who use traditional pans without any lining.
• What alternatives can vendors use? Food‑grade silicone, ceramic‑coated pans and cast‑iron skillets are safe, reusable options that provide a non‑stick surface.

As the conversation gains momentum across the continent, the hope is that both consumers and vendors will prioritize health over shortcuts. The crunchy delight of plantain chips should never come at the expense of safety.

For more details, see the original report on Pulse.ng.

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