Eat or Avoid
E240

Formaldehyde

Also known as: Formol, Carbonyl hydride, Oxomethane

Preservatives

Safety rating

Avoid

Eat Away!Generally SafeUse SparinglyAvoid
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Purpose and Function

Formaldehyde was historically used as an antimicrobial preservative for fish and seafood, and for disinfecting food contact surfaces. It is no longer approved for food use in most countries due to toxicity.

Commonly found in

  • Historically: preserved fish and seafood (now prohibited in most countries)

Key functions

  • Formerly inhibited bacterial and fungal growth

Potential Risks and Side Effects

  1. 01Highly toxic, causing serious health problems if ingested, inhaled, or contacted with skin
  2. 02Classified as a human carcinogen by the International Agency for Research on Cancer (IARC)
  3. 03Not approved for use as a food additive in most countries; use is strictly prohibited

References

    Related Additives