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Jenkem

Jenkem is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jenkem rather than just read about it. In short: Jenkem is an inhalant and hallucinogen created from fermented human waste. In the mid-1990s, it was reported to be a popular street drug among Zambian youth, created by placing feces and urine in a bottle or a bucket, sealing it with a balloon or lid and leaving it to ferment in the sun; afterwards they would inhale the gases generated.

Jenkem — main illustration
Jenkem — illustration

Key takeaways

  • Jenkem belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Jenkem to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Jenkem from memory before moving on to harder problems.

Reference excerpt

Jenkem is an inhalant and hallucinogen created from fermented human waste. In the mid-1990s, it was reported to be a popular street drug among Zambian youth, created by placing feces and urine in a bottle or a bucket, sealing it with a balloon or lid and leaving it to ferment in the sun; afterwards they would inhale the gases generated. In November 2007, there was a moral panic in the United States after widespread reports of jenkem becoming a popular recreational drug in middle and high schools across the country, though the validity of this claim has since been called into question. Several sources reported that the increase in American media coverage was based on a hoax and on faulty Internet research.

Description The name derives from Genkem, a brand of glue which had "become the generic name for all the glues used by glue-sniffing children" in South Africa, where the drug originated and is most popular on the African continent today. In the book Children of AIDS: Africa's Orphan Crisis by Emma Guest, the making of jenkem is described: "fermented human sewage, scraped from pipes and stored in plastic bags for a week or so, until it gives off numbing, intoxicating fumes." The process is similarly described in a 1995 IPS report: "Human excreta is scooped up from the edges of the sewer ponds in old cans and containers which are covered with a polyethylene bag and left to stew or ferment for a week." A 1999 BBC article refers to "the dark brown sludge, gathering up fistfuls and stuffing it into small plastic bottles. They tap the bottles on the ground, taking care to leave enough room for methane to form at the top." The effects of jenkem inhalation supposedly last for around an hour and consist of auditory and visual hallucinations for some users. In 1995, one user told a reporter it is "more potent than cannabis." A 1999 report interviewed a user, who said, "With glue, I just hear voices in my head. But with jenkem, I see visions. I see my mother who is dead and I forget about the problems in my life." Fumito Ichinose, an anesthesia specialist from Boston who conducted a study on the effects of hydrogen sulfide gas, or "sewer gas," on mice, informed Salon.com that holding one's breath, choking, or "the inhalation of gases like those produced from jenkem could result in hypoxia, a lack of oxygen flow to the body that could be alternately euphoric and physically dangerous."

Media reports

1995–2006 The second media description of jenkem came from an Inter Press Service wire report in 1995. According to a 1998 report in The New York Times, Fountain of Hope, a non-profit organization, said that jenkem was used by street children in Lusaka, Zambia, to obtain a "powerful high". In 2002, Project Concern International Zambia and Fountain of Hope released a report entitled "Rapid Assessment of Street Children In Lusaka", where jenkem is listed as the third most popular drug among Lusaka's street children, following Dagga (Cannabis) and "glue and Dagga" but ahead of "Ballan" (uncured tobacco) and petrol. John C. Zulu, director of the Ministry of Sport, Youth and Child Development in Zambia, said in November 2007 that jenkem usage is less common than glue-sniffing and, "Initially, they used to get it from the sewer, but they make it anywhere ... They say it keeps them warm and makes them fearless." In 1999, BBC News ran a story about jenkem. In 2004, South African weekly investigative newspaper Mail & Guardian mentioned jenkem abuse in a report on Zambia's street children.

… excerpt ends here. Continue reading the full article.

Illustrations

Jenkem: A bottle of Jenkem, which has been fermented for a period of 30 days.
A bottle of Jenkem, which has been fermented for a period of 30 days.

Worked examples

Example 1 — a first encounter with Jenkem

Start with the simplest possible case. Write down what Jenkem claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jenkem before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jenkem ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jenkem

In research
Jenkem appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Jenkem in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Jenkem is common in secondary-school and first-year university syllabi. It links to neighbouring topics American urban legends, Culture of Zambia, Feces, so understanding it makes those chapters shorter.
In everyday life
Look for Jenkem outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Jenkem in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jenkem means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jenkem out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jenkem in simple terms?

Jenkem is an inhalant and hallucinogen created from fermented human waste. In the mid-1990s, it was reported to be a popular street drug among Zambian youth, created by placing feces and urine in a bottle or a bucket, sealing it with a balloon or lid and leaving it to ferment in the sun; afterwards…

Why does Jenkem matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jenkem?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jenkem.

Tags

  • American urban legends
  • Culture of Zambia
  • Feces
  • Hallucinogens
  • Hoaxes about drugs
  • Inhalants

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