Introduction: DIY Pepper Spray
Have you always wanted to make pepper spray?
I dont know about you, but I have. After convincing myself it would be too expensive, I figured out how to make pepper spray for FREE. Thats right, this projects is absolutely free to make using household materials.
THIS PEPPER SPRAY WORKS
My eyes were burning and it felt like someone turned the heat on my face up a few 100 degrees
Be safe while using this product
With this pepper spray you can
- Deter an attacker
- Prevent an animal attack
- make animals stop eating your plants
And much more! Of course, I'm not responsible for any actions you make regarding this project, so be safe!
Lets make some Pepper Spray!
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Step 1: Materials
You will need
Isopropyl rubbing alcohol
- Oil (plain cooking oil)
3. Two small containers
4. One spray bottle
5. Ground Cayenne Pepper (Or grind your own)
6. Coffee filter
Thats all you need! I had these around my house, it was FREE!
Step 2: Pour in Pepper
Open the cap and pour a heaping amount! No exact size, but roughly half a cup.
I just eyeballed it and made a pile.
Step 3: Rubbing Alcohol
Next take your rubbing alcohol and pour it into your plastic container. Add up to about 1 cm above the pile of ground pepper
Step 4: Mix It Up!
Get a plastic spoon and start mixing! Stir it for about 2 minutes to really mix it in.
Now let it soak. I waited only an hour because I got pretty tired of waiting
To really make this extremely strong let it sit overnight or even better, a whole day!
Step 5: Add Oil
Now get your cooking oil and add just a little bit. About 1-2 tablespoons. I severly messed up and added way too much oil. Oh well. It will still work fine.
Step 6: Mix It Up Pt. 2!
Start mixing again! Mix for again about a minute or two.
Step 7: Filter the Mix
Place a coffe filter over the top of a cup
No pour the mix over the filter and wait till all the "Juice" seeps through
You now have very fine/pure pepper spray
Just smelling the mix caused my eyes to water! It works!
Step 8: Put Mix in Bottle
Now get your spray bottle and pour your mix in! You can now spray your pepper spray!
Next Step!
Step 9: Defend Your Self!
You now have fully functioning pepper spray! This stuff really works!
You can use it to deter attackers
Prevent animals from eating your plants
Scare off animals
Although I'm not to blame should something go wrong in those situations
IM NOT RESPONSIBLE FOR YOUR ACTIONS!
Having said that, Go have fun!
Please vote for this instructable if you liked it. I really appreciate it.

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17 Comments
2 years ago
What can I use instead of rubbing alcohol?
5 years ago
awesome!!!!!!!
6 years ago
How can I get hot çhilli from Australia?
Reply 6 years ago
Grow yourself
8 years ago on Introduction
If you want to take this to the next level, Use a chili that originates here in Australia
"The Trinidad Scorpion"
Reply 8 years ago
How about a carolina reaper? 2M+ shu! :D
Reply 8 years ago on Introduction
Hahaha 1,500,000 – 2,000,000 Scoville Heat units!
Ill let you try that one!
8 years ago on Introduction
good job filling the spray bottle
8 years ago on Introduction
Does this work with methylated spirits, rather that ethanol/rubbing alcohol?
Thanks
8 years ago on Introduction
Check wind direction carefully, or face a selfie. :)
Its possibly a better idea to get a nozzle which sprays a stream and not a mist, maybe you can hack the present nozzle to get a stream.
Reply 8 years ago on Introduction
I was testing it. Its the only spray bottle I could find lying around the house. If I was really trying to make this effective, I would probably use one of those large spray bottles used on for dogs. Thanks for the advice!
8 years ago on Introduction
You could also use any hot pepper. The compound you are extracting is the capsaicin, if you ground some hot pepper seeds you could end with a very powerful pepper spray.
Also, use ethanol, not rubbing alcohol.
Reply 8 years ago on Introduction
Rubbing alcohol works as well.
8 years ago on Introduction
I agree with the other users here. Probably going to need a different nozzle for self defense use, but I do think this would be an effective (and organic) way to discourage garden pests!
Reply 8 years ago on Introduction
I has worked so far! Stopped the squirrels from eating freshly planted seeds!
8 years ago on Introduction
Spray bottles like that don't have much range - be careful not to get yourself in the face!
Reply 8 years ago on Introduction
Oh trust me I found that out the hard way... I was seeing if I could actually make pepper spray. This is an old bottle I had lying around the house, If I was really trying to make this effective, I would probably use one of those large spray bottles ment for dogs. Thanks for the advice!