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Hazardous Substances

Jenkem (Fermented Sewage Gas)

Street names: Butt hash, Junk, Poop gas

Jenkem (Fermented Sewage Gas) — Feces and urine fermented in bottles; gas inhaled

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

📋Quick facts

Also known asButt hash, Junk, Poop gas
CategoryHazardous Substances
Schedule / classNot a drug — urban legend/verified cases debate
AppearanceFeces and urine fermented in bottles; gas inhaled
Street priceFree — that's the point
Legal statusNot a drug; no laws specific
Last updated2026-09-17
Sources: NIDA, Snopes

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
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
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.