How to do Dry Ice THC Extraction

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Posted on May 6, 2018 in Breakfast, Desserts, Dinner, Drinks, Snacks

Here is a quick and easy method of extracting THC from marijuana by using dry ice to make hash. You can compress the extracted hash into cakes or pellets for easy storage and later use as well. Let’s take a look at how it’s done.

Tools required:

  • Two 1 gallon bubble bags with silk micron filters (73 and 90 micron each)
  • A bucket about the same size as your bubble bag
  • A pair of safety gloves
  • A hammer
  • Pollen press (to form the powdered kief into hash cakes)


  • 1 ounce of weed
  • 2 to 3 pounds of chopped up dry ice


Start by breaking the dry ice into 1 inch cubes using a hammer in the sink. Don’t forget to wear your safety gloves while doing this. For 1 ounce of weed you need to use 2 or 3 handfuls of dry ice.

Next put the weed into the bucket and then put 2 to 3 handfuls of dry ice into it. Once the ice is in, gently toss the weed and ice together in the bucket to combine them together. Once they have been mixed let them sit in the bucket for a couple of minutes and in the meantime put the fine mesh bubble bag on over the bucket all the way from over the top till you cover the entire bucket and tie it off at the bottom.

Now shake the bubble bag and bucket for about 2 or 3 minutes till the bag is cooling up. Once the weed and dry ice have chilled for about 2 minutes, invert the bucket along with the bubble bag over a flat clean surface. Shake the bucket over the surface much like you would shake a salt shaker. This action will make sure that the small THC passes through the micron filter of the bag and comes out and most of the weed plant matter is held back. This action takes 2 to 3 minutes; keep shaking the bucket till the kief stops falling out. This is higher quality kief as we are using a fine micron filter. Brush off the bottom of the bag once the kief stops falling out. Now use a thin flat card like a credit card to scrape all the kief collected on the surface into a pile. The kief will have an amber yellow colour.

How to Make Sous Vide Cannabutter

Next do the same procedure using theless fine micron mesh bubble bag and this will help you collect a slightly lower grade quality hash. With the larger micron mesh you will collect much more kief but this kief is not as potent as the kief collected with the first bubble bag. Collect the kief in a pile using a card just like before. This kief will have a slight green colour as it has more plant material.

Weigh both the types of collected kief. You can get about 0.6g of the higher grade kief and 2.9g of the lesser potent kief with this extraction method and 1 ounce of weed. If you want to make the kief into hash cakes you can do so with the pollen press. The result would be pellets of compressed hash.

As always, we’ve included a video below for those of you who are visual learners. Don’t forget to sign up for our newsletter to receive the latest and greatest weed recipes directly to your inbox!

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