Are you looking to make your first weed butter, cannabis oil or THC and CBD infusion? We welcome you with open arms on your adventure! Come learn how to decarb cannabis with a mason jar.

Creating edible cannabis infusions is rewarding in more ways than one.

By now, you’ve probably noticed most ‘How to make weed butter’ recipes call for decarboxylating your cannabis.

Every time I type the word decarboxylate I still think it’s made up – and perhaps it is. So no worries if it sounds overly technical. It’s not difficult and is an essential step to making weed butters and oils.

There is a great cannabis cultural debate about the need for decarboxing (aka. decarb) your weed. A tale as old as time.

We are pro-decarbing at BeTheHippy. Mostly because we find it helps us with consistency in our recipes. Also, we just love cooking and we always go the extra mile.

Why Do We Decarboxylate for Weed Butter

Decarboxylation is a necessary step for us to enjoy the psychoactive effects of the cannabinoids we consume.

Have you ever noticed the ‘A’ in THCA or CBDA on your labels? Probably never gave it too much thought because at that point, the cannabinoid has taken effect.

The ‘A’ in the cannabinoids stands for Acid – this is the inactive state of your cannabinoid. If you don’t convert the THCA to a THC, you’ll never feel the good times flowing.

So, how does one convert the THCA to a simple THC?

Welp, decarboxylate your marijuana my friend!

Yup, that’s one of the reasons you hear about it so often. Without this step, your Endocannabinoid Systems receptors will never reap the benefits of this nutritional plant.

Why Use a Mason Jar to Decarboxylate for Cannabis Butter

The smell my friends! We love using the mason jar technique primarily for the reduction of smell.

If you live in an urban area or an apartment complex, this becomes an essential “ingredient” to your cannabis infusions.

Also, we find we get a good consistent heating when using these methods. The end product is just better in our opinion.

So we have three ways we like to decarboxylate our hemp, marijuana and cannabis plants (yeah, they are all the same but we like keywords) with a mason jar.

  • Mason jar in the oven
  • Mason jar in a pot of water
  • Mason jar in an Instant Pot – crazy right?

Use an Oven and Your Mason Jar to Decarb

One of our preferred methods for decarbing our cannabis for edibles. We love the consistency. We love the limited chance of accidentally burning your cannabis. We very much love the limited odor that comes from this method.

Living in a complex in a busy city forces us to find creative way to make our edibles without telling the neighbors we are a bunch of hippies.

Equipment and Ingredients

  • 1/2 ounce Cannabis
  • Mason jar with lid
  • Baking tray
  • Kitchen towel
  • Cannabis
  • Oven glove
  • Grinder


  • Set your oven between 220 and 240 degrees Fahrenheit with a middle positioned rack.
  • Break up the cannabis to about the size of a grain of rice. Put it into the mason jar and lightly screw on the lid.
  • Wet the kitchen towel lightly and and fold it twice. Lay it over the baking sheet then put the mason jar on the towel. The damp towel will help anchor the jar and reduce scorching from directly touching the baking sheet.
  • Place the baking tray in the oven on the middle rack. Bake for 60 minutes. Every 15 minutes, carefully remove the mason jar from the oven with the oven gloves and give it a shake to disperse the cannabis evenly.
  • Remove the jar from the oven after 60 minutes, and let cool for 30 minutes before storing or cooking.

How to Use a Pot of Water to Decarboxylate your Cannabis

Using a mason jar with a pot of water to make cannabis infused edibles is similar to using a double boiler, except without the smell.

The trick here is to make sure you get the right amount of water to heat the mason jar but also keeping the mason jar from floating around.

We will sometimes add protection to the bottom of the pot to keep the heat from directly touching the jar. Either a small metal rack or a towel submerged into the water works for this trick.

Note: Make sure you place the mason jar with cannabis in the water before you begin to heat it. This will limit the chance of cracking the jar and help slowly and evenly decarboxylate your cannabis.

Equipment and Ingredients

  • 1/2 ounce Cannabis
  • Mason jar with lid
  • Pot with boiling water
  • Kitchen towel or wire rack
  • Cannabis
  • Oven glove
  • Grinder


  • Break up the cannabis to about the size of a grain of rice. Put it into the mason jar and lightly screw on the lid.
  • Fill a pot around the halfway mark with water. Place on the stove top on low to medium heat. Make sure the height of the water level is not going to cover over the jar.
  • Place the jar in the pot of water before it heats up. Note that boiling water is between 200 – 215 (depending on altitude) which is the perfect temp to avoid burning off the cannabinoids
  • Bring the water to a low simmer with the jar in place for up to 90 min. Do not let the water evaporate while decarbing.
  • Remove the jar from the pot after 60 – 90 minutes, and let cool for 30 minutes before storing or cooking.

Decarb Cannabis with a Mason Jar in an Instant Pot

Technology is fun and we love our Instant Pot! Should have gotten the biggest one for how much we use this for cooking after a busy day.

Using the pressure cooker to decarboxylate your weed for edibles is quick, easy and limits the odor. Could barely even tell we were activating our cannabis.

This method is very similar to using a pot of water or even a double boiler, but it cuts the time in half.

Note: Make sure you have a solid mason jar for this to avoid cracking in the Instant Pot. Leave the lid loose as well. Pressure can build within the jar and it’s not as easy to “burp” the mason jar in the instant pot.

Equipment and Ingredients

  • 1/2 ounce Cannabis
  • Mason jar with lid
  • Instant Pot with water
  • Wire rack for Instant Pot
  • Cannabis
  • Oven glove
  • Grinder


  • Break up the cannabis to about the size of a grain of rice. Put it into the mason jar and lightly screw on the lid.
  • Place the jar in the Instant Pot and fill to around the halfway mark of the jar with water. Make sure the height of the water level doesn’t cause the jar to float.
  • Close the lid and seal to the pressure cooker and set on high for 40 minutes.
  • Release the pressure manually when the cycle is complete. (Careful! The steam will be hot.)
  • Remove the jar from the Instant Pot , and let cool for 30 minutes before storing or cooking.

Disclaimer: this information is not medical advice and is purely for entertainment and education purposes. In no way do we condone the use of cannabis or it’s bi-products without the consent of your medical professional as well as abiding by your state and country laws.

This Post Has 7 Comments

  1. Kailee

    Howdy! I could have sworn I’ve been to this
    blog before but after going through a few of the posts I
    realized it’s new to me. Nonetheless, I’m definitely happy I stumbled upon it and I’ll be book-marking it and checking back regularly!

    1. bethehippy

      Thanks for stopping in! Glad you stumbled our way. Stay groovy!

  2. Alena

    Great post.

  3. Jim

    Thanks for the info!
    I’m wondering if one could decarb & infuse into oil in one step using a mason jar & the Instant Pot.
    Grind cured well dried bud, toss it into a mason jar, add oil, seal & set temp, pressure & time.
    I’ve always wondered if decarboxylating & then infusing, even if the infusions are done on low heat for a few hours, further oxidizes the cannabinoids due to the extra time to complete the 2-step process.
    Any thoughts on this?

    1. bethehippy

      Hey Jim,

      Fun question, the age ole decarb vs. non-decarb tale as old as the plant itself…

      To be honest, I’ve skipped the decarb step in my life and, yeah, it worked pretty well! Rule 1 of edibles – in our opinion – is to test it out and find what works for your endocannabinoid system. If you receive the therapeutic effects you are looking for… then have at it!

      For us, we took note from the good people at Ardent Cannabis (see test results) who have some interesting findings.

      On the other hand, infusing 1 gram of Velvet Purp flower into one ounce of coconut oil without decarbing first results in a good infusion rate BUT NOT a good decarboxylation rate. You can see in the final oil, there is only 24.38 mg of active THC per ounce of oil. The vast majority of it is still in the THCA acid form (over 165.85 mg per ounce of oil). That means that only 13% of the cannabinoids in the oil have been decarbed, with 87% still in the acid form.

      A few things to note

      1. Each cannabinoid/terpene decarbs and oxidizes at different temperatures,
      2. dry heat helps convert your CBDa into an active CBD; liquid heat may not convert it as much as extract the CBDa (which is A-OK if that’s the medicinal cannabinoid of choice)

      Hope this helps. Come back if you find any new info. New findings are showing up daily in the land of cannabis!

      Stay groovy,

  4. Francine

    Does it matter what size mason jar? You indicate 1/2 oz weed, but that mason jar looks like a medium sized one.

    1. bethehippy

      I tend to use a 12 or 16 ounce mason jar depending on the amount of product I’m decarbing. I find keeping below the halfway mark of the jar is best for me, I want to make sure there is enough air to heat up in the jar. This makes it easy to “roll” the jar during the process to make sure it’s an even decarb (not a necessary step but it makes me feel better). I do it gently as to not break the trichomes.

      Hope this helps and stay groovy!

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