What is the Best Way to Kill a Spider?

By Horizon Pest Control

How do you deal with a spider in your home? You might be searching for the best way to kill a spider or wondering how to kill a spider with minimal suffering. Ideally, we’d guide every arachnid safely outside—but when removal isn’t possible, what method truly balances effectiveness with compassion?

Ok, so if that spider absolutely must die, which technique is the most humane? Should you smash it, burn it, drown it—or is there a better approach?

Common Methods and Their Drawbacks

  • Smashing:
  • Turning a spider into “spider ooze” with a blunt object may seem quick, but accuracy is hard to achieve. Partial blows can leave the spider alive and in pain, requiring multiple strikes. This trial-and-error approach rules smashing out as humane.

  • Burning:
  • Fire can kill a spider rapidly, yet chasing it with an open flame risks property damage and personal injury. The speed of death does not justify the hazard.

  • Drowning:
  • Some consider submersion, but do spiders drown? Many house spiders can hold their breath for up to an hour, and species like wolf spiders may survive underwater for 40 hours by entering a coma-like state. The slow process can be torturous rather than humane.

The Humane Champion: Freezing and Alcohol

Experts agree the best way to kill a spider humanely is using cold, not heat or water. Dr. Jerome Rovner, a professor at Ohio State and a member of the American Arachnological Society, recommends:

  • Contain: Capture the spider in a pill vial or a small jar, then snap the lid tightly shut.
  • Freeze: Place the sealed container in your refrigerator freezer overnight. Lowering its body temperature mimics natural winter dormancy.
  • Finalize: Add enough rubbing alcohol to submerge the immobilized spider and prevent any chance of revival. Flush the contents down the toilet the next day.

This method minimizes distress, aligning with how spiders naturally cope with cold spells.

Humane Spider Control: A Trustworthy Approach

At Horizon Pest Control, our technicians bring over a decade of hands-on experience in Montclair, Essex Fells, Cedar Grove, Ridgewood, Edison, and Midland Park. We follow guidelines from respected authorities, such as Dr. Rovner, demonstrating our expertise and authoritativeness. You can trust our transparent, expert-backed approach to handling spiders responsibly—our team’s track record guarantees that commitment to trustworthiness and real-world experience.

Have you ever tried freezing a spider? Will you try out this more humane method of killing a spider in the future?

Frequently Asked Questions

1. What is the best way to kill a spider humanely?

The most humane method is to trap the spider in a sealed container and freeze it overnight. Freezing mimics winter dormancy, gently stopping its metabolism. The next day, add rubbing alcohol to prevent revival, then flush the contents. This approach is widely recognized as the best way to kill a spider with minimal pain.

2. Can spiders drown, and do spiders drown if submerged?

Spiders use book lungs that resist water, so drowning takes well over an hour. This slow process causes prolonged distress, making drowning neither quick nor humane.

3. Why is smashing a spider not the most humane way to kill a spider?

Smashing often requires several blows to finish the job, extending the spider’s suffering. Inaccurate hits can leave part of the body alive, so it fails as a quick, painless solution. Freezing offers a more reliable, humane alternative.

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