How to Make Cannabutter: Complete Step-by-Step Guide

How to Make Cannabutter: Complete Step-by-Step Guide

Cannabutter is the cornerstone of cannabis cooking — regular butter infused with activated cannabis that you can substitute into virtually any recipe that calls for butter. Whether you're baking brownies, making sauces, or spreading it on toast, mastering cannabutter opens the door to the entire world of homemade edibles.

In this guide, you'll learn the full process from start to finish: decarboxylating your cannabis to activate THC, infusing it into butter, straining for a clean final product, and calculating your dosage so every serving is consistent and predictable. No guesswork, no surprises.

Before you start, plan your batch with our free cannabutter calculator to know exactly how potent your cannabutter will be.

What You'll Need

Ingredients

• 1 cup (2 sticks / 227g) unsalted butter — unsalted gives you full control over flavor in your final recipes
• 7–10 grams of cannabis flower — adjust based on desired potency (less for beginners, more for experienced users)
• 1 cup water — helps regulate temperature during infusion
• Cheesecloth or fine mesh strainer — for filtering out plant material

Equipment

• Baking sheet and parchment paper
• Oven or alternative decarb device (sous vide, Instant Pot)
• Medium saucepan for water bath
• Heat-proof glass jar or container that fits in your saucepan
• Kitchen thermometer (crucial for temperature control)
• Airtight storage container (glass jar or silicone container works well)

The strain you choose affects both flavor and effects — browse our Strain Library to find the right match for your recipe. Indica-dominant strains tend to produce more relaxing edibles, while sativas lean more energetic. Hybrids offer a balance of both.

Step 1: Decarboxylation

Before cannabis can produce its effects in edibles, it needs to be activated through a process called decarboxylation. Raw cannabis flower contains THCA, an inactive precursor that must be converted into THC through heat. Without this step, your cannabutter will have little to no effect regardless of how much flower you use.

Oven Method

1. Preheat your oven to 240°F (115°C).
2. Break up your cannabis flower into small, roughly pea-sized pieces. Don't grind it to a fine powder — you want airflow between the pieces, and a fine grind makes straining more difficult later.
3. Spread the pieces evenly across a parchment-lined baking sheet.
4. Bake for 40 minutes, gently stirring and redistributing the flower at the 20-minute mark to ensure even heating.

How to Tell It's Done

Properly decarboxylated cannabis changes from bright green to a brownish-green or light golden-brown color. Your kitchen will smell distinctly nutty and herbaceous. If the flower turns dark brown or black, your oven was too hot — that material has lost a significant amount of THC and will taste harsh.

Do not skip decarboxylation. This is the most common mistake beginners make, and it's the difference between effective cannabutter and expensive regular butter with a grassy taste.

We cover all decarb methods in depth — including sous vide and Instant Pot — in our Decarboxylation Guide.

Step 2: Infusion

With your cannabis decarboxylated, it's time to infuse it into butter. The double boiler method is the most reliable approach and gives you the most control over temperature.

Double Boiler Method (Recommended for Beginners)

1. Set up your double boiler — Fill your medium saucepan with about 2 inches of water and place it on the stove. Place a heat-proof glass jar or container inside the saucepan, making sure the water level reaches about halfway up the jar's sides.
2. Add the butter to the jar and bring the water to a gentle simmer over low heat. The butter will melt slowly and evenly without direct heat contact.
3. Add the decarboxylated cannabis to the melted butter in the jar, stirring gently to combine.
4. Maintain the temperature between 160–180°F (70–82°C). Place your kitchen thermometer in the butter mixture and check it regularly. Never let it exceed 200°F.
5. Simmer for 2–3 hours, stirring every 20–30 minutes to ensure even infusion. The water bath will maintain consistent, gentle heat throughout the process.
6. Monitor water levels — Add more hot water to the saucepan as needed to maintain the water level around the jar.

Why the Double Boiler Matters

The double boiler method creates a gentle, indirect heat source that prevents overheating and scorching. The water in the saucepan can't exceed 212°F, which creates a natural temperature ceiling that protects your infusion from getting too hot. This method prevents the milk solids in butter from burning, which would introduce bitter, burnt flavors into your final product.

Temperature Is Everything

THC begins to degrade above 200°F. Every degree matters during this step. A kitchen thermometer isn't optional — it's the single most important tool in the entire process. Low and slow produces the best results. Resist the urge to crank the heat to speed things up.

Step 3: Straining and Storage

Once your infusion is complete, it's time to separate the plant material from the infused butter.

1. Set up your strainer. Place a double layer of cheesecloth over a bowl or wide-mouth mason jar. Secure it with a rubber band or clip so it doesn't slip.
2. Pour slowly. Carefully pour the butter-cannabis mixture through the cheesecloth, letting it filter through at its own pace.
3. Do NOT squeeze the cheesecloth. This is important. Squeezing forces plant material through the cloth, adding a bitter, grassy taste to your cannabutter. Let gravity do the work — it takes longer, but the result is a much cleaner product.
4. Cool completely. Allow the strained cannabutter to cool to room temperature before transferring to storage containers.

Storage: Keep your cannabutter in an airtight container in the refrigerator for up to 2 weeks, or in the freezer for up to 6 months. Always label clearly with the date and estimated potency per tablespoon. This matters more than you think — unlabeled infused butter in a shared fridge is a recipe for problems.

Calculating Your Dosage

This is where most homemade edibles go wrong. People guess instead of calculating, and end up with batches that are either disappointingly weak or overwhelmingly strong. Consistent dosing is what separates good edibles from bad ones.

The Formula

(grams of cannabis × THC percentage × 1,000 × 0.90) / number of servings = mg THC per serving

The 0.90 factor accounts for approximately 10% THC lost during decarboxylation and infusion. No extraction process is perfectly efficient, and this gives you a realistic estimate rather than a theoretical maximum.

Worked Example

Say you use 7 grams of flower at 20% THC:

• 7 × 0.20 × 1,000 × 0.90 = 1,260mg total THC in your entire batch of cannabis butter
• If your recipe makes 24 cookies, that's approximately 52mg per cookie
• For beginners, that's quite strong. You'd want to either use less cannabis or increase the number of servings to bring the per-serving dose down.

Beginner Dosing

Start at 5mg THC per serving and wait at least 2 hours before consuming more. Edibles take significantly longer to take effect compared to other methods, and the effects last longer too. Patience here prevents a bad experience.

Common Mistakes

1. Too much heat — Exceeding 200°F during infusion degrades THC. Use a thermometer and keep it low and slow. If your butter is bubbling vigorously, it's too hot.

2. Skipping decarboxylation — Raw cannabis won't get you where you want to go. Always decarb first. This is non-negotiable.

3. Not calculating dosage — "Eyeballing it" leads to edibles that are either too weak or uncomfortably strong. Do the math or use a calculator. Every batch deserves a number.

4. Using salted butter — Salt can interfere with the infusion process and alter the flavor profile of your finished recipes. Always use unsalted butter and add salt separately as your recipe requires.

5. Squeezing the cheesecloth — Patience pays off. Let the infused butter drip through on its own and you'll get a cleaner, better-tasting final product with less plant matter.

Frequently Asked Questions

Q: How long does cannabutter take to make?

The full process takes about 3–4 hours: 40 minutes for decarboxylation, 2–3 hours for infusion, plus cooling and straining time. Plan for a half-day project. You can do other things while the infusion simmers — just set a timer to stir every 20–30 minutes and keep an eye on the temperature.

Q: Can I use coconut oil instead of butter?

Yes. Coconut oil is an excellent alternative with high fat content for absorbing cannabinoids. Use the same double boiler infusion process and substitute coconut oil 1:1 for butter. It's a great option for vegan recipes or for anyone who prefers a more neutral flavor base. The resulting infused oil stores and cooks the same way.

Q: How do I know if my cannabutter is strong enough?

Use our cannabutter potency calculator to estimate potency based on your strain's THC percentage and the amount of cannabis used. The only reliable way to know is to calculate it. Start with a small test dose of about 5mg THC and wait at least 2 hours before consuming more. Keep notes on each batch so you can adjust next time.

Q: What color should cannabutter be?

Properly made cannabutter ranges from light golden-green to deep olive green. The exact shade depends on the strain used and how finely you broke up the flower before infusion. Very dark brown or black indicates overheating, which degrades THC and produces bitter, unpleasant flavors. A rich green color is normal and expected.

Ready to Cook?

Now that you've got your cannabutter, it's time to put it to use. Browse our community recipes for inspiration — from classic brownies to gourmet infused dishes.

Need to dial in your dosage? Our Dosage Calculator has you covered.

New here? Join the Fellowship and start sharing your creations.

Related Guides

• Cannabis Gummies Recipe — Use your cannabutter to make gummies
• Cannabis Coconut Oil — An alternative infusion base
• THC Dosage Calculator — Get your per-serving dose right
• How to Store Edibles — Keep your cannabutter fresh
• Edibles for Beginners — New to edibles? Start here

Gear for this job: grade-90 cheesecloth strains clean without squeezing bitterness into the batch, a probe thermometer keeps the simmer honest, and the MagicalButter MB2e does the whole infusion hands-off (affiliate links).