Isoamyl Alcohol
Isoamyl alcohol is listed under 21 CFR 172.515 as a synthetic flavoring substance permitted for use in food. It is also a natural fermentation byproduct found in beverages.
What it is
Isoamyl alcohol (3-methyl-1-butanol) is a fusel alcohol naturally formed during fermentation; used as a flavoring agent and solvent.
Synthetic flavoring substance used at low levels for fruity/banana notes.
Why it's flagged
- irritant in concentrated form
- intoxication if consumed at high levels
What regulators actually say
"The synthetic flavoring substances listed in this section may be safely used in food in the minimum amount required to produce their intended effect... Isoamyl alcohol."
Regulatory status
United States — FDA
Listed in 21 CFR 172.515 as a synthetic flavoring substance permitted in food.
European Union — EFSA
Authorized as a flavoring substance under EU Regulation 1334/2008.
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