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How To Make Your Own Pepper Spray (At Home)

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Pepper spray can make for an extremely effective (and non-lethal) self-defense tool.

From home invaders to bears, there’s not much on this planet that can withstand a blast from this “hellfire” to the face or eyes.

Side-effects of pepper spray range from swelling of mucous membranes of eyes, nose & throat, nasal & sinus discharge, coughing, shortness of breath, dry eyes, involuntary eye closure, painful burning of the skin, and hyperventilation. Needless to say…it’s nasty stuff!!

If you’ve ever wanted to make your own pepper spray at home, here’s how:

*Note: This article is for entertainment purposes only! We do not condone the making of illegal weapons nor the use of weapons on innocent humans or animals. Pepper spray is considered a food product, but it is powerful stuff. Proceed with caution. Prepping News is not responsible for accident or injury to you or others if you attempt to make pepper spray at home.

This is what you will need:

  • 1 Packet Dried chilie
  • 1 Empty aerosol can
  • 1 Snapple bottle
  • 1 Glass jar
  • Strainer
  • Blender
  • 10ml syringe
  • Acetone paint remover
  • Air Pump
  • Butane lighter refill
  • Ice
  • Salt
  • Large plastic cup

 

Step 1: Blend the Chilies

Using the blender, blend the chilies into fine flakes. You are going to need enough to fill half of the Snapple bottle. Do NOT breathe in the chili powder as it may irritate the nose and throat.

Step 2: Extract the pepper liquid

Fill the Snapple bottle with the dried chilies, then add the Acetone until it fills to the brim. Let the mixture sit for a week until a reddish solution can be seen. Filter out the chilies using the strainer and pour the red liquid to the glass jar.

Step 3: Fill the Aerosol Can

Remove the plastic spray cap from the aerosol can. Using the 10ml syringe, inject the red liquid into the aerosol can by pressing down. It is wise to use gloves during this step as some liquid may leak! Fill the can with roughly 70ml of the red pepper liquid. While the can is at room temperature, the acetone will vaporize and create pressure inside the can. To prevent too much pressure from building, submerge the aerosol can in an ice bath.

Step 4: Build the Butane Gas Transfer System

Remove the rubber tubing from the air pump body to transfer the butane gas into the aerosol can. Keep the plastic nozzle of the air pump tubing in place. Fix the plastic nozzle end of the air pump tubing onto the aerosol can (where the liquid was injected) and fit the other end of the tubing onto the top of the butane can. The butane will be used as a propellant for the pepper spray. The tubing should now be connected to both cans. Return the aerosol can into the ice bath once again.

Step 5: Transfer the Butane to the Aerosol Can

Depress the nozzle on the aerosol can that contains the red pepper liquid. Then, depress the nozzle of the butane lighter refill and wait until you hear the hissing sound cease – this means both cans are at equal pressure. First, release the nozzle of the aerosol can then finally release the nozzle of the butane. Do not mix up this sequence or you will get pepper liquid spurting through the transfer tube.

Step 6: Enjoy Your Pepper Spray

Finally, remove the rubber tubing from the top of the aerosol can and replace the plastic spray cap very carefully, making sure not to depress the nozzle. Your aerosol can should now be “locked and loaded” and ready to use!

 

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The contents of this article are for informational purposes only. Please read our full Information Disclaimer here.

Photo credit: Pepper spray Demonstration licensed under Creative Commons 2.0