
Kief is a potent cannabis concentrate that can be used to enhance the effects of weed. It is the powdery byproduct of the grinding process and can be collected from the bottom of a grinder. While scraping kief out of a plastic grinder can be challenging, there are several effective methods for collecting it. These include using a coin, freezing the grinder, or soaking the grinder in isopropyl alcohol. Additionally, a hashish drum, pollen box, or a new grinder with a kief catcher can be used to collect kief more efficiently.
Characteristics and Values Table for Collecting Kief from a Plastic Grinder
| Characteristics | Values |
|---|---|
| Use a coin | Put a ridgeless coin in the middle chamber of the grinder to help knock trichomes into the bottom chamber. |
| Use a kief catcher | Use a grinder with a kief catcher or screen bottom chamber to collect kief in the bottom chamber. |
| Use a pollen box | Put some buds in the top and shake it up. The trichomes will sift through the filter and into the bottom tray. |
| Use a hashish drum | Stretch a silkscreen over a drum basin, cover with buds, and beat the basin to make kief fall through the screen into a bucket. |
| Freeze the grinder | Place the grinder in the freezer to make the trichomes brittle and easy to separate. |
| Use isopropyl alcohol | Put the grinder pieces in a jar of alcohol, swish them around, and let the alcohol evaporate to separate the kief. |
| Use hot water and dish soap | Place the grinder pieces in a container of hot water and dish soap to clean the grinder. |
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What You'll Learn

Use a coin to knock trichomes into the chamber
To collect kief from a plastic grinder using a coin, you must first separate the kief that can be easily taken away from your grinder. Then, find a coin that will fit loosely inside the middle chamber of your grinder, where your ground weed ends up. The coin should be able to move around inside the grinder by giving it a slight shake. Listen to hear the coin bouncing around easily inside the grinder. The coin should not roll around inside the grinder and should fit snugly into the collection chamber. A dime is a good choice as it is small and odourless, but for larger grinders, a heavier coin may be preferable. Make sure to sanitise the coin before use.
Next, reassemble your grinder and put it in the freezer. This will make the cannabis trichomes more brittle, making them easier to separate from the grinder. Leave the grinder in the freezer for at least 15 minutes or overnight.
Once the grinder is chilled, remove it from the freezer and shake it vigorously. The shaking will cause the coin to hit the walls and teeth of the grinder with force, knocking the kief off. Remember to shake the grinder in all directions, not just one.
After shaking, open the grinder and remove the coin. The kief should now be ready and separated inside the collection chamber.
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Place the grinder in the freezer
Placing your grinder in the freezer is a great way to collect kief. This method works because when trichomes—the small hairs on cannabis flowers that contain most of the plant's cannabinoids and terpenes—are cooled, they become brittle. By placing your grinder in the freezer, you can cause trichomes to break off and gather in your kief chamber, if your grinder has one. The longer you leave your grinder in the freezer, the better your chances of collecting more trichomes.
To use this method, simply place your grinder in the freezer for at least 15 minutes or, better yet, overnight. Then, take your grinder out of the freezer and begin grinding your herbs. The cold temperature will have made the trichomes brittle, and the kief will break off the metal and collect in your kief chamber. If kief is still stuck in hard-to-reach places, you can use a small, brittle paintbrush to collect it.
If you don't have a kief chamber, you can still use the freezing method to collect kief. After placing your grinder in the freezer, take it out and tap it on a hard surface to collect the kief in one place. You can also use a coin to collect the kief. Choose a coin that fits snugly into the collection chamber of your grinder, place it inside, and shake it lightly. Then, remove the coin and enjoy the kief that has been collected in the chamber.
After collecting your kief, you can smoke it straight or use it to top a bowl. You can also store it for later use. Just be sure to let the alcohol evaporate fully before smoking if you have used it to remove the kief from your grinder.
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Use a small, brittle paintbrush
If you're looking to increase the potency of your weed, collecting kief is a great way to do so. Kief is the powdery byproduct of your regular grind, and it contains around 50% more cannabinoids and terpenes than the strains in your usual rotation.
One way to collect kief from a grinder is by using a small, brittle paintbrush. Here's how you can do it:
First, it is recommended to place your grinder in the freezer for about 30 minutes. By lowering the temperature, trichomes—the resinous parts of the plant that contain cannabinoids like THC and CBD—become brittle and easier to separate from the grinder. This step is not mandatory but will help increase the amount of kief you can collect.
Once your grinder is chilled, open it carefully and use a small, brittle paintbrush to sweep the kief from the grinder. The paintbrush should be small enough to fit into the nooks and crannies of the grinder, and its bristles should be stiff enough to brush away the kief without being so hard that they damage the grinder. Sweep the kief into a container, such as a jar or dish, taking care not to spill any.
If there is kief stuck in hard-to-reach places, you can use a flat tool, such as a coin or a knife, to gently dislodge it. Be cautious when using metal tools, as they can damage the grinder or leave behind metal shavings.
After collecting the kief, be sure to clean your grinder. The accumulation of gunk in the grinder can reduce its efficiency and impact the taste of your weed. Clean your grinder by disassembling it and removing any remaining plant matter. Then, depending on the material of your grinder, follow the appropriate cleaning method: for metal grinders, use isopropyl alcohol; for plastic grinders, use hot water and dish soap.
By following these steps and using a small, brittle paintbrush, you can effectively collect kief from your plastic grinder and enjoy its concentrated effects. Remember to be gentle with your tools and grinder to ensure a pleasant smoking experience.
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Soak in isopropyl alcohol
Soaking your grinder in isopropyl alcohol is an effective way to collect kief from your grinder. It is important to note that this method is recommended for metal grinders and not plastic ones. Plastic grinders should not be cleaned with alcohol.
To start, disassemble your grinder and remove any ground weed and kief. Then, fill a jar or plastic bag with enough isopropyl alcohol to submerge all components of the grinder. The alcohol should be at least 70%, with higher concentrations being more effective at removing residue and bacteria. Drop the grinder pieces into the alcohol and let them soak for at least 30 minutes. If there is stubborn grime, you can soak for up to an hour or even overnight.
After soaking, carefully swish the pieces around in the jar to remove any remaining kief. Then, pour the alcohol into a Pyrex dish or onto a plate and let it evaporate completely. Do not smoke the kief until the alcohol has fully evaporated. Once the alcohol has evaporated, you will be left with pure kief that can be smoked or stored for later use.
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Use a pollen box
A pollen box, also known as a kief collector, is a specially crafted container designed to collect larger amounts of kief from fully formed buds. It is a simple and efficient way to collect kief. Pollen boxes are ideal for those who want to collect kief without shredding their buds.
To use a pollen box, place your fresh buds on top and then shake the box. This allows the trichomes and the kief to sift through the filter and into the bottom tray. Once you're done shaking the pollen box, simply open it and enjoy the filtered kief.
Pollen boxes are not ideal for large batches, but they work well for small batches. They are also not as easy as using a herb grinder, but they are still a simple method if you're looking for an alternative.
To get the most out of your pollen box, you can use a kief scraper. This is a dedicated tool crafted to collect every last bit of kief in your pollen box. The kief scraper is easy to clean and will last for years. Simply soak it in alcohol to remove any residue and store it inside your pollen box. Use the pointed end to scrape the kief from the corners and compile it into a mound. Then, use the shovel to scoop up the kief and transfer it to a bowl, joint, or another type of storage container for later use.
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Frequently asked questions
Place the pieces of your grinder in a plastic container and fill it completely with hot water and dish soap. Then, swish the pieces around carefully in the jar and let them sit for a bit. The kief in the grinder will be removed by the soap and water.
Put the grinder in the freezer for 30 minutes. Once it is well chilled, you can sift the kief. The trichomes will separate easily, leaving you with a valuable collection of kief.
Take the grinder apart and put it in a jar full of ISO alcohol. Swish the pieces around carefully in the jar and let them sit for a bit. The kief in the grinder will be removed by the alcohol. Once you have let it sit for a bit, you can take the alcohol and pour it into a Pyrex dish. Let the alcohol evaporate in the dish until all that’s left is the kief from the grinder.










































