Dry ice kief, also known as dry ice hash, is a potent all-natural cannabis concentrate.
Sure you can buy kief in a dispensary. But you'll be amazed at just how quick and easy it is to make dry ice kief at home!
Don't get intimidated. Dry ice THC extraction is simple to do with just a kief bag for filtering your cannabis. Once you have this bag, you'll be able to make kief with it over and over again.
The video above will show you how to make dry ice kief, in under 2 minutes! Detailed written instructions follow.
To make Dry Ice Kief AKA Dry Ice Hash you will need:
- a baking sheet
- a piece of parchment paper
- about an ounce of marijuana
- a small bowl of dry ice chunks
- an ovenproof dish, we used a ramekin
- a scraper, we used a credit card
- a 120 micron or 90 micron filter bag
You don't actually need a full ounce of marijuana, you can use more or less as you see fit. You can even use trimmings, although the quality will generally not be as good and you will need more plant material to get a comparable yield to kiefing flowers.
Different cannabis strains will yield different results with making Dry Ice Kief. For a point of reference, in the batch we made on the video above we used 1 ounce of average quality buds in a 120 micron filter bag. We shook with dry ice twice, for two minutes each time. In theory the first shaking will be of a higher quality. We find the difference to be minimal so we usually end up mixing it all together. When it was all said and done we ended up with 4.8 grams of raw kief from our single ounce of medium quality marijuana flowers.
You will lose some weight in the decarboxylation process (see below). Our 4.8 grams turned into 4.5 grams to be used for cooking and/or smoking after it had been baked at 250 degrees F for 20 minutes.
About Dry Ice Kief Bags
Filter bags (sometimes known as Bubble Bags, so named because they are typically used to make bubble hash via a process of adding cannabis, ice, and water and then filtering out the trichomes that are later pressed into hash), can also be used to filter dry ice kief.
The bags are usually made of canvas and they have a fabric filter screen on the bottom.
We used a 120 micron filter which will yield a decent quality of dry ice kief that's perfect for cooking. To get a higher quality dry ice kief suitable for smoking, use a 90 micron bag, but know this will yield a slightly smaller volume.
How to Make Dry Ice Kief
- Check out this link for more information about safely handling dry ice.
- See the video at the top of this page. Sifting kief seems a little hard to believe until you have actually seen it done!
Making Dry Ice Kief Step 1:
Break up your dry ice piece into small chunks. To do this put a larger piece of dry ice in a plastic bag and tap with a hammer until it breaks into smaller pieces. Always wear gloves when handling dry ice.
Crumble the marijuana with your fingers.
Do not use a grinder! All grinding will accomplish is to mix more plant material in with the concentrate, which is not what we are looking for.
What we want to do is separate the resinous trichomes that are on the buds and leaves from the plant material. As these trichomes are ON the plant not IN it, there is no need for fine grinding. Just coarsely break up the plant material so it has more surfaces exposed.
Making Dry Ice Kief Step 2
Place the crumbled marijuana in the filter bag with some dry ice chunks.
Making Dry Ice Kief Step 3
Shake the bag over a baking sheet that has been covered in parchment paper for two minutes. Scrape up the kief and shake for another 2 minutes.
If you don't plan on keeping the two batches separate you can just shake for 4 minutes total.
Shake & Bake -- The Importance of Decarbing Dry Ice Kief
Now that you've shaken, it's time to bake - not metaphorically, literally!
Use the credit card to scrape up the kief and put it into a ramekin or other small ovenproof dish. Before using in cooking you will want to decarboxylate the kief in order to activate the plant's THC.
Many people don't realize that raw marijuana plants do not contain THC but only THC-A (or acid). The process of baking the kief, or decarboxylation to use the scientific term, turns the THC-acid into psychoactive THC.
Even if you plan on using the kief in a recipe that will be cooked, decarbing it first can up its potency. A friend lab-tested a batch of brownies that had plain kief stirred into the batter, as opposed to kief that had been first decarboxylated, and found the latter to be about 30% more potent!
Decarboxylation is easy to do, just put your kief or hash in an ovenproof dish and heat for about 60 minutes at 240 degrees F. Remove from oven, cool and you are ready to use for cooking.