How to Grind Weed for Edibles and Infusions

Updated October 2026

Short answer: for butter, oil and tinctures, grind flower coarse, about the texture of dried oregano leaves, not powder. A coarse grind gives the fat or alcohol plenty of surface to work on while keeping less plant matter and chlorophyll in the final infusion, so it strains cleaner and tastes less grassy. Decarb before infusing, and save powder-fine grinding for nothing at all.

Most homemade edibles go wrong in one of three ways. They taste like a lawn. They're weirdly weak. Or the butter has a sludgy green layer of plant dust you can't get out. All three trace back to two steps people rush: the grind and the decarb.

We make grinders, so we've spent an unreasonable amount of time thinking about the grind part. Here's the full process, start to finish, minus the drama.

Quick ground rules: this is for adults 21+ in places where cannabis is legal. Laws on home preparation vary, so check your state and local rules.

Why grind size matters for infusions

Infusing is just letting a fat (butter, coconut oil, olive oil) or alcohol pull cannabinoids and aroma out of the plant. More surface area means faster extraction. So the instinct is "grind it to dust." Here's the problem with that instinct.

Grind	Extraction	Straining	Taste	Verdict
Whole or broken by hand	Slow and uneven	Easy	Mild	Wastes potential
Coarse (oregano-leaf size)	Good, even	Easy, clean	Mild, less grassy	The sweet spot
Medium (joint texture)	Good	OK	Slightly more plant flavor	Fine for tinctures
Powder	Fast	Miserable, sludge gets through	Grassy, bitter, green	Skip it

The tradeoff is chlorophyll and fine plant particles. Powdered flower releases more of the green, bitter stuff and passes right through cheesecloth, which ends up in your brownies. A coarse, even grind extracts well over a long, low infusion and stays in the strainer where it belongs.

"Even" matters as much as "coarse." Grinders that crush instead of cut give you a mix of dust and chunks, so you get the worst of both. Sharp, cutting teeth give you consistent pieces. More on that in the science of grind size.

How to grind for edibles

1. Break buds into small pieces by hand and remove stems. Stems add bitterness and nothing else.
2. Load the grinder loosely. Edible batches are bigger than a bowl, so you'll grind in a few loads. Don't cram.
3. Use just a few twists. You want coarse. Check after two or three turns and stop early.
4. Don't flip it for extra fine. Flipping a Phoenician upside down for extra turns is how you get a finer grind for vapes. For edibles, skip it.
5. Collect everything, including what's in the kief chamber. More on kief below.

Grinding a full batch by hand gets old fast. A bigger grinder means fewer loads. A 2 piece grinder is great here because it has no screen, so everything you grind lands in one chamber, ready to go.

Decarboxylation basics (don't skip this)

Raw flower contains mostly THCA, not THC. THCA doesn't produce the classic high. Heat converts it, a process called decarboxylation. Smoking and vaping do it instantly. For edibles, you do it on purpose in the oven before infusing.

How hot and how long? In a lab study published in Cannabis and Cannabinoid Research, THCA fully converted in about 30 minutes at 110°C (230°F), about 9 minutes at 130°C, and about 6 minutes at 145°C, while temperatures under 100°C didn't finish the job within an hour. That was in a precise lab oven. Home ovens swing and run hot or cold, which is why most home guides land around 230 to 250°F for roughly 30 to 45 minutes.

Practical tips:

• Use an oven thermometer. Your oven dial is lying to you. Most are.
• Spread the coarse grind in a thin, even layer on a parchment-lined baking sheet, or seal it in an oven-safe dish to keep smell down.
• Look for light golden-brown, not dark brown. Dark means you've overdone it and burned off flavor.
• Expect smell. Your kitchen will announce what you're doing. Plan around roommates and neighbors.
• Let it cool before infusing.

Fun side effect: grind size helps decarb too. Even pieces heat evenly. Mixed dust and chunks means the dust toasts while the chunks lag behind.

Infusing butter, oil and tinctures

Butter and oil

The basic idea: combine decarbed flower with butter or oil (many people add a little water to butter so it doesn't scorch), then hold it on low heat for a few hours. Low and slow is the rule. Never let it boil or fry. A slow cooker, a double boiler, or a saucepan on the lowest setting all work. Stir now and then.

Tinctures

Alcohol tinctures soak decarbed flower in high-proof, food-safe alcohol, then strain. A medium grind works fine here, and many people do a cold soak in the freezer to pull less chlorophyll. Alcohol is flammable, so keep it away from open flames and never heat it on a stovetop.

Straining without the sludge

1. Line a fine mesh strainer with cheesecloth (a double layer) or a nut-milk bag.
2. Pour slowly and let gravity do the work.
3. Don't squeeze hard. Wringing the cloth pushes chlorophyll and fine particles into your infusion. A gentle press is fine.
4. For butter, chill it so the butter firms on top and any water separates underneath, then lift the butter off and discard the water.

Notice how much easier this is when you ground coarse? That's the payoff.

Using kief in edibles

If you've had a 4 piece grinder for a while, you're probably sitting on a nice stash of kief in the bottom chamber. Kief is mostly trichome heads, so it's far more concentrated than flower, with very little plant material. That makes it great for infusions: almost no green taste and almost nothing to strain.

• Decarb it too. Kief needs heat just like flower. Use a small oven-safe dish and keep a close eye on it, since it's fine and can scorch.
• Use much less. Because it's concentrated, a little goes a long way. Treat any kief-based batch as stronger than a flower batch.
• Collect more. The Upgrade Kit includes a 400 micron coarse screen that lets more through, and the screen system guide explains which screen to use when.

Edible safety: the non-negotiables

Homemade edibles are unpredictable. You don't know the exact strength of your flower or how evenly the infusion mixed into the batter. So:

• Start low and go slow. Try a small portion and wait. California's cannabis regulator notes edibles can take up to two hours to kick in and up to four hours to peak. Do not take more because "it isn't working yet."
• Label everything. Write "contains cannabis" and the date on every container of butter, oil and every batch of treats.
• Store them away from kids and pets, ideally locked, in child-resistant containers. Infused brownies look exactly like regular brownies. Chocolate and many edible ingredients are dangerous for dogs too.
• Don't drive or operate anything heavier than a remote after eating edibles.
• Adults 21+ only, where it's legal.

What's happening with edibles right now

Store shelves have moved well past the pan of brownies. Low-dose gummies and chocolates, infused drinks, and sugar-free or vegan options are all common in legal markets, and lots of people now prefer smaller, more predictable portions. That's a good lesson for home cooks too: make your servings small, and consider infusing a fraction of your butter rather than the whole stick so you can blend it with regular butter for a milder batch.

Cleanup

• Pots and strainers: wipe out excess fat with a paper towel first, then hot soapy water. Infused butter residue is sticky.
• Cheesecloth: most people toss it. Reusable nut-milk bags wash fine in hot soapy water.
• Your grinder: a big edible session leaves resin on the teeth. Clean it so the next grind is still sharp and even. Here's how to clean a grinder the right way.
• Leftover plant matter: once strained, it's spent. Bag it and toss it where pets can't dig it out.

FAQ

Should I grind weed fine or coarse for edibles?

Coarse. It extracts well, strains cleanly and keeps the grassy, chlorophyll flavor down. Powder makes bitter, sludgy butter.

Do you have to decarb weed before making butter?

Yes, for THC. Raw flower is mostly THCA, which needs heat to convert. Low infusion temperatures convert it slowly and unevenly, so a separate oven decarb is the reliable route.

What temperature do you decarb weed at?

Lab research found full conversion in about 30 minutes at 230°F. Because home ovens vary, most people use 230 to 250°F for 30 to 45 minutes and check with an oven thermometer.

Can I use kief to make edibles?

Yes. Decarb it first, use much less than you would flower, and start with a very small serving since it's more concentrated.

Can I grind weed in a blender or coffee grinder for edibles?

You can, but blades turn flower to powder fast, which is exactly what makes butter green and bitter. A real grinder gives you control over coarseness.

Coarse grind, careful decarb, gentle strain. That's the whole secret. Grind a big batch in fewer loads and save the kief for later.

Keep reading

• What are trichomes? Where your kief comes from
• Home grow guide: from seed to cure to grind
• The terpene guide: why fresh-ground flower smells better