Homemade Dry Ice

by Barry Lewis

Prep time
5 mins
Cook time
5 mins


CO2 Fire extinguisher



Pillow case

I’m going to keep this short and sweet, if you want to learn how to make homemade dry ice check this out. I’d never done it before and wondered if the DIY stuff in a fire extinguisher was still ‘edible’ vs stuff ordered online, well, it is! So save yourself some hassle of ordering online and get hold of a (generally cheaper) CO2 fire extinguisher, because other than that and a pillow case, that is all you need and you get a fair amount too!

How to make dry ice at home

  1. Prepare your CO2 fire extinguisher, it should have a large funnel on the end.
  2. Tape a clean pillow case around the entire funnel and nozzle securely.
  3. Head outside and wear protective gloves, remove pin from fire extinguisher and spray it into the pillow case.
  4. The gas will escape through the pillow case holding the dry ice in place!

That is it. Cool huh?!

So now you know how to make your own homemade dry ice, why not check out how to make heston blumenthal’s egg and bacon ice cream recipe or some DIY fizzy fruit with dry ice! Good luck and be super safe, do this outdoors and do not touch the dry ice with your hands as you’ll get nasty burns, that stuff is cold!