How To Make MCT Oil Rosin Capsules

Todde Philips   

🇺🇸 Retired veteran, father, rock-climbing expert & rosin connoisseur

When hash heads get together to talk about rosin, it’s unlikely that rosin capsules will be the first topic of conversation. Rosin is known for its ability to capture the purest essence of the cannabis plant, offering an accurate representation of each particular cultivar’s unique terpene profile, maintaining an unmatched level of potency and purity within all categories of cannabis concentrates. How could we fit all of this sensory magic into an edible capsule?  

Although rosin is generally vaporized and inhaled for the cleanest and most satisfying type of dab you could hope to find, there are other ways to consume rosin. When it comes to dosing accuracy, discreetness, and convenience, it’s hard to imagine a better use for rosin than making rosin caps.  

Rosin that’s visually unappealing, unworkable or undesirable in texture/consistency, or uninspiring in terms of terpene expression might be a good candidate for the rosin capsule experience.  

Some people find the therapeutic effects of cannabis to be most powerful when it’s metabolized by way of the digestive tract. Rosin capsules unlock this ability for us to appreciate the full potency of our favorite cannabis concentrate through a different, and refreshing, lens. 

Adding to the list of benefits, rosin caps are even easier to make than the rosin itself. 

So how do you get started making rosin caps? You don’t need a lot of supplies to make rosin capsules. Here’s the list:

  • MCT Oil
  • 00 Capsules
  • Syringe
  • Rice (to make filling the caps a lot easier)
  • Rosin
  • Oven (to decarboxylate the rosin)


Decarboxylation

The first step is decarboxylating our rosin. Through decarboxylation we prepare rosin to be effective in capsule form.

Decarboxylation is a chemical reaction that removes a carboxyl group from target molecules, in our case THCA, CBDA, and other cannabinoids. THCA is the acid form of the THC molecule. When we dab rosin, the high heat required for vaporization instantly transforms the acid form of the molecule to the non-acid, sidestepping the need for a decarboxylation process.

But in capsule form we need to first decarb the rosin, otherwise we’ll ingest the concentrate to no effect. Through decarboxylation we make rosin bioavailable via our digestive tract.  

Decarbing is a simple process. All we need to do is expose our rosin to temperatures between 230-250 degrees Fahrenheit for 30-90 minutes. 

An oven is the easiest solution in many situations. Use a small mason jar filled with your rosin and place it in the oven, no lid, for 30 mins. After 30 mins, check to see if it’s bubbling and if so give it a stir.

Keep going until the rosin stops bubbling. Bubbles signify that decarboxylation is actively taking place. When the carboxyl group falls off the THCA molecules it releases carbon dioxide as a byproduct, which forms bubbles in the rosin. When the bubbles stop, that’s your signal that the decarboxylation process is complete. 

Infusion

Now that your rosin is in a bioavailable form for making capsules, we can move to the next step in the process. While the rosin is technically bioavailable, we can’t eat a mouthful and expect to get high. We need to infuse the rosin into coconut (MCT) oil where it binds with fatty acids that properly introduce it to our digestive system. 

In short: decarbing prepares our rosin, then we use rosin to infuse the carrier oil. The fatty molecules within our carrier oil enable rosin’s active ingredients to bind with our bodies’ endocannabinoid system, delivering the desired therapeutic effect. 

Mix 1 part rosin to 10 parts coconut (MCT) oil and stir over low heat for 60-90 minutes. Be careful not to let the oil and rosin mixture simmer. 

Once the rosin is fully infused in the MCT oil, let it cool off fully. This is the time to test for potency. Use your syringe to take small amounts of oil and wait 45 mins to fully gauge the effect. 

A moderate estimate  is .1g of oil per capsule. Start with this amount and see how it settles in for you. 

Now that you have a sense of the potency of your infused MCT oil, on to the next step - filling the capsules. 


Filling Capsules

This is where that bowl and rice come into play. Fill the bottom of the bowl with ½ inch of rice and insert half-capsules, open end facing up, directly into the rice. The rice will hold the capsules in place while you use the syringe to fill to fill them. 

Avoid overfilling the capsules as this can lead to splitting the caps open while fitting the two halves back together. 

Secure the top half of the capsules by pressing down firmly. A tight seal prevents leakage while the rosin caps are in storage. 

Storage

Keep the capsules in a sealed mason jar in the refrigerator for long-term storage. Leakage may occur as the capsules sometimes dissolve and degrade over time. By keeping the caps in a glass jar and chilling the oil to make it less runny, you’ll minimize the downside. 

Conclusion

Rosin caps can offer a refreshing change of pace within your cannabis routine and give you a new way to enjoy the therapeutic effects of your rosin. The kind of high you get from ingesting capsules is noticeably different than what traditional dabs deliver.

And, if you don’t want to repurpose your rosin to make caps, you can always use your leftover rosin pucks to infuse MCT oil. See our article What To Do with Rosin Pucks for some pointers.  

Read our article about rosin pucks here

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