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Hazardous Substances

Jenkem (Fermented Sewage Gas)

Street names: Butt hash, Junk, Poop gas

⚡What it does

  • Claimed: hallucinations, euphoria — largely unverified

⚠Key risks

  • REAL OR LEGEND — mostly a 2007 moral panic; a few verified case reports exist
  • If real: hydrogen sulfide poisoning (toxic)
  • Asphyxiation risk
  • Primarily a cautionary tale about drug panics

✚Overdose signs

  • Hydrogen sulfide toxicity: confusion, collapse
  • Asphyxiation

Category comparison — Hazardous Substances

SubstanceClassTop risksStreet price
Jenkem (Fermented Sewage Gas)Not a drug — urban legend/verified cases debateREAL OR LEGEND — mostly a 2007 moral panic; a few verified case reports exist; If real: hydrogen sulfide poisoning (toxic)Free — that's the point
Potassium Cyanide (KCN)Not a drug — regulated toxic chemicalLethal dose ~200–300 mg — death within minutes to an hour; No antidote available outside hospital; hydrogen cyanide gas from acid contactN/A — sometimes sold fraudulently as 'peaceful exit' scams
Air Duster (Computer Duster / Canned Air)Household product — not a drug; no age restriction on purchaseSUDDEN SNIFFING DEATH — the most deadly inhalant: difluoroethane sensitizes the heart to adrenaline; a sudden fright, chase, or exertion triggers fatal cardiac arrest. First-time users die; Frostbite to lungs and airway from direct spray$3–$8 per can at any electronics/office store
Gasoline / Petrol HuffingNot a drug — fuel productExtremely toxic hydrocarbons (benzene, toluene, xylene); Sudden sniffing death — cardiac arrestEffectively free — siphoned fuel
Glue / Solvent SniffingNot drugs — adhesives and solventsThe CLASSIC youth inhalant — peak use age 14–15; Sudden sniffing death from cardiac arrest$1–$5 per tube/can — pocket money prices
Refrigerant / Freon HuffingNot a drug — HVAC refrigerantEXTREMELY dangerous — refrigerant gases (difluoroethane, tetrafluoroethane) cause sudden cardiac death at high rates; Frostbite to airwaysStolen/siphoned — no price, high death cost
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does Jenkem (Fermented Sewage Gas) look like?

Feces and urine fermented in bottles; gas inhaled

What are the signs of a Jenkem (Fermented Sewage Gas) overdose?

Hydrogen sulfide toxicity: confusion, collapse; Asphyxiation Call emergency services immediately.

How addictive is it?

REAL OR LEGEND — mostly a 2007 moral panic; a few verified case reports exist Dependence can develop with regular use.

🔗Sources & further reading

Facts on this page are compiled from these primary sources. External links open in a new tab.