Does Alcohol Kill Cockroaches? Here’s What You Need To Know
We found no official source (EPA, CDC or a university extension page) that says rubbing alcohol is a way to control cockroaches. It is not a registered roach treatment that we could confirm. It is flammable, so spraying it around a home carries its own fire risk.
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Rubbing Alcohol Dilution Chart (PDF): How much 99%, 91% or 70% rubbing alcohol and water to mix for a 70% or 60% cleaning solution, for 100, 250 and 500 ml. 5 rows, each with its source.
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We use your email only for this download.What we could and could not confirm
We searched for EPA, CDC and extension guidance on using isopropyl alcohol against cockroaches and found none. Many websites claim it works on contact, but those pages are not official sources, so we do not repeat their claims.
The safety side is documented
NIOSH lists isopropyl alcohol as a Class IB flammable liquid with a flash point of 53 F. Its vapor can ignite at room temperature. NIOSH also lists dizziness, drowsiness, headache and irritation of the eyes, nose and throat as symptoms of exposure.
The CDC says alcohols are flammable and evaporate rapidly. They must be stored in a cool, well-ventilated area.
What to do instead
- If you see roaches regularly, ask a licensed pest control company or your local university extension office.
- Do not spray alcohol near stoves, pilot lights, candles or outlets.
- Keep it away from children and pets.
For safe use of alcohol as a cleaner, see our dilution calculator.
People also ask
Does rubbing alcohol kill roaches?
We found no official source saying so. Websites that claim it works are not authoritative.
Is it safe to spray alcohol in the kitchen?
It is flammable (NIOSH flash point 53 F), so keep it away from flames and heat.
Who should I ask about roaches?
A licensed pest control professional or your local university extension office.
Sources
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