When handling cannabis flower, many of us have encountered the small amount of powdered gold (kief) that is left at the bottom of our grinder and collection chambers. This is more than just residue - kief is a highly concentrated version of some of the most desired chemical compounds in cannabis.
When I discovered kief, it opened my eyes to new ways of consuming cannabis, and made me realize that something that had previously gone to waste could now be utilized as a valuable resource.
What is Kief?
Kief, commonly referred to as dry sift or pollen, is essentially a collection of trichomes that were originally attached to the cannabis plant. Trichomes are the small crystalline resin glands that cover the surface of cannabis flowers, and are responsible for creating the vast majority of the plant's cannabinoids (such as THC and CBD) and aromatic terpenes. Therefore, kief is essentially the raw, untainted essence of the cannabis plant, and all of the plant material (leaves, stems, etc.) has been removed.
In terms of my personal experience, the quality of kief can vary greatly. High-quality kief will generally be a very light, sandy-blonde color and will be very powdery or even fluffy. It will melt and bubble when subjected to a hot knife, which indicates that it is extremely pure. Lower-quality kief will often have a greener and darker appearance, and will not melt as cleanly. The significant difference in quality between high-quality kief and lower-quality kief can affect the potency and flavor of your final product.
Why Does Kief Matter?
Kief matters for several reasons. First, it represents efficiency and potency. For the conscientious cannabis user, it offers a means to maximize the value of their cannabis. Rather than losing those valuable trichomes to the inside of a bag, or the surface of a table, collecting kief allows you to capitalize on the full potential of these trichomes. I've found that using kief in my consumption regimen results in me needing to consume less cannabis overall to achieve the same effects, which allows my cannabis supply to last longer.
Another reason why kief is so valuable is due to its versatility. Kief can be used in a variety of ways without having to undergo additional processing. Sprinkle it atop a bowl or add it to a joint for an added kick - known as 'crowning' or 'frosting'. Press the kief into rosin using a hair straightener for a solventless dab, or collect enough to create your own hash. Due to the ease of use, kief is an invaluable asset for both novice and experienced users who wish to enhance their experience.
How Kief is Made: A Step-by-Step Guide
The basic principle behind the process of making kief is separation. The primary purpose is to gently dislodge the brittle, resinous trichomes from the plant material, without crushing or destroying the plant material itself.
Gathering Your Material
The first stage is to obtain your initial material. While you can utilize cannabis trim (leftover cannabis leaves after manicuring cannabis flowers), the highest-quality kief will originate from quality, correctly dried and cured cannabis flower. I've discovered that using over-dried, brittle cannabis flowers to create kief will result in significantly more plant material being broken off during the sifting process, causing contamination of your kief and resulting in a less-pure product.
Separation Process
The most widely available tool to facilitate this separation is a three-part or four-part grinder. As the flower is ground, the friction and motion created by the grinding action will cause the trichomes to break free and pass through a fine mesh screen located at the bottom of the grinder into a separate collection chamber. This is a passive collection process that takes time. I've built a considerable kief supply over the course of months using this method, and there is a certain satisfaction associated with this slow and steady accumulation.
To create a higher quantity of kief more quickly, you may want to consider using a series of silk-screen boxes or sieves with progressively smaller mesh openings. The plant material is gently agitated over the screens, allowing the trichomes to fall through the screens, while leaving the plant material above. Utilizing multiple screens with smaller and smaller mesh openings helps to refine the quality of the kief by eliminating smaller pieces of plant debris, thus producing a cleaner product. When I initially employed a real screen box, I was amazed at the sheer volume of kief that I was able to extract from cannabis trim that I would normally discard.
Storage and Collection of Kief
Once the kief has been separated, it must be treated carefully. I employ a small, clean instrument to remove the kief from the collection chamber. The most important aspect of preserving the kief is the manner in which it is stored. Kief is susceptible to degradation from exposure to light, heat, and oxygen. I always store my kief in a small, airtight, opaque glass jar in a cool, dark location. Properly storing kief in such a manner ensures that the delicate terpenes and cannabinoids present in the kief are preserved, maintaining the potency and flavor of the kief from the moment it was collected.
Common Problems and Practical Solutions
Although a relatively straightforward process, collecting kief can still pose problems. Below are two examples of common problems I've encountered while collecting kief and practical solutions to resolve them.
Low Kief Yield
You've been grinding for weeks, and the collection chamber at the base of your grinder is only slightly dusty. This is often frustrating.
Solution: The root of this problem is either the quality of the starting material, or the quality of the screen in your grinder. Some strains of cannabis are inherently more resinous than others, and therefore produce a greater amount of kief. On the other hand, cheaper grinders often have screens with larger holes or that tend to clog with resin. Upgrading to a grinder with a quality screen with finer holes has been instrumental in increasing the amount of kief that I'm able to collect. You can also experiment with placing a clean coin in the middle compartment of your grinder. When you shake it (after grinding), the coin can assist in knocking more kief through the screen.
Kief is Clumping and Hard to Handle
You attempt to use your kief and discover that it has formed a sticky, solid mass that is difficult to sprinkle.
Solution: Moisture and pressure are the typical culprits behind this issue. If your cannabis was improperly cured, or if you reside in a humid environment, the kief may be absorbing excess moisture, thereby becoming clumpy. Store your kief in an airtight container containing a small, food-grade desiccant packet to absorb excess moisture. Do not apply pressure to the kief when it is stored in its container. Allow the kief to remain light and fluffy. If the kief is already clumped, do not worry - you're well on your way to creating traditional hash.
Final Thoughts
The Kief is not simply the by-product of cannabis processing; it is an example of the untapped capabilities of the cannabis plant. The method I have used to collect Kief has also increased my awareness of the cannabis plant's anatomy and its chemical makeup. The practice of collecting Kief requires both patience and efficiency as one converts what are most often discarded, into a diverse range of concentrates that can be used at will. Collecting Kief on the occasions when you want to top off a bowl or slowly accumulating enough to create a homemade hash project provides a simple yet rewarding way to enhance your overall cannabis experience.