how to make crystalline thca

What Is THCA Crystalline And How Is It Made?

Never have we witnessed such a level of purity in an extract. The team over at Guild Extracts might’ve been the first, but what this represents is bigger than them. Welcome to the world of 99.9% pure THCA!


Created by the team over at Guild Extracts, this is an extract composed of 99.997% THCA. Most extracts today will have around 50-80% purity. As the first team to successfully do this, it’s claimed to be the strongest hash in the world. And with a 0.003% margin, it will be hard to improve upon. It has gained extreme popularity due to its uniqueness and purity. And this can be observed with its prices, reaching as high as €170 a gram.

When processed, pure THCA crystallises. Its visual similarities to drugs like cocaine make a lot of people question it. But the true breakthrough with this extract is beyond the recreational market. THCA, when decarboxylated, loses its acidic atom, leaving behind the pure THC. This happens when you light-up or pressure the cannabinoid. This purified cannabinoid came to change the game for all those in need of potent, medical THC.


When dealing with such a pure substance, precision is one of the main advantages. Never before could a patient be so sure of his/her THC intake. When dealing with flower and even other extracts, it’s extremely hard to know the exact THC percentage it contains. The error margins are relatively large. With THCA crystalline, the patient can continuously assess results based on the dosage, knowing that it will always be consistent.

Edible companies will now have access to an extract that will allow for more precise dosing of products. This is an extract that will also act extremely fast, which is a great advantage, especially considering the time an edible can take to hit. This can be crucial for certain conditions treatable with THC.

Another great advantage is that, when ingested without being decarboxylated, THCA will have no psychoactive effects, but will still present various medical applications. This is great news for patients in need of THC, but who don’t enjoy the high it gives. When there is no heat or pressure applied, THCA can be placed in a drink or meal with no alteration in mental functioning.


When dealing strictly with THC (or THCA), there will be things one must sacrifice. This extract has no terpenes, so it won’t have pungent aromas or flavours. Some consumers even report it to taste like “snowflakes”, which in turn tastes like water, which is tasteless. You get the point. There will be no possible alterations to the product. It doesn’t matter what the strain is or how it was grown, 99% THCA will always be the same. So, you’ll either enjoy the high or you won’t. You’ll also be sacrificing the “entourage effect” that other cannabinoids have on THC. You won’t be experiencing cannabis, you’ll just be experiencing one cannabinoid.

But once you try it, you might be surprised. The high is described as extremely clear, fresh, and energetic. It’s almost a little too clear and fresh for some who describe it as too medical. It might be possible that consumers become so high that they can’t even recognise it for what it is. But the high is surely there; with almost double the purity most of us have experienced, it might just be a high we can’t yet comprehend. But in a way, it’s good that it’s “too medical” because that’s exactly what it should be used for. By using a substance this pure for recreational purposes, it might be hard going back to smoking joints or bowls – the high will be nowhere close.


If you have no basic information on how extracts are made, this might seem a little overwhelming, but the idea behind the process is fairly easy to understand. This all starts with your usual cannabis extract derived from cannabis plant material. But to make the process faster, an already isolated substance is often used.

This extract is then mixed with hexane and acetic acid. These are two chemicals that, together, will help further separate the plant material form the THC. This happens by dissolving the plant matter, but keeping the good stuff untouched. This solution is then placed through a filter so that more plant matter can be removed. The remaining liquid will be placed in a rotary evaporator.

This machine will use different values of pressure, heat, and motion to further separate elements in the solution. After this process, the resulting liquid is called Δ9 tetrahydrocannabinolic acid. But this is still far from what we’re looking for. There will still be impure elements, so chromatography will help remove these. Sephadex-LH20, dichloromethane, and chloroform are added to our tetrahydrocannabinolic acid.

To further purify it, the chemists will place the crystals back into the rotary evaporator. These are then mixed with methanol to separate even more impurities. This solution then goes through a filter to remove these impurities and back into the rotary evaporator to remove the methanol. To end the process, this will once again be mixed with a dissolvent to purify the mixture to the 99.997% it’s famous for. This is finally placed in the evaporator once again to remove the harmful solvent. And there you have it; this is what creates THCA crystalline.

Find out more about the new 99.9% THCA extract and how it came to change the lives of recreational and medicinal cannabis consumers!

THCA, the acid form of THC

Cannabis plants contain a number of compounds that have pharmacological and/or psychoactive properties, cannabinoids. Today we are going to meet a very special one, since it can be both medicinal and psychotropic, it is THCA and lately it is gaining prominence. In this post we will see what are the benefits it can bring us, its uses, several ways to get it and many more things, so make yourself comfortable and keep reading…

⭐ What is THCA?

Delta9 THCA is a cannabinoid, a component that can be found in both cannabis and hemp. It is the acid form of THC, the predominant compound in these plants, and they’re directly related.

Is THCA psychoactive? No, it is not if you ingest it, but if you try to smoke it, it is. So? Well, when you heat this compound to smoke it, a reaction takes place that eliminates the acidic part of the cannabinoid, this is the decarboxylation or transformation to THC..

Image of THCA molecule*

⛳ THCA’s Health Properties and Benefits

  1. Anti-inflammatory
  2. Painkiller
  3. Anticancer
  4. Relaxing
  5. Anticonvulsant
  6. Neuropathic
  7. Narcotic
  8. Anxiolytic
  9. Antiemetic
  10. Antiproliferative

✨ How to make THCA

The extraction of this cannabinoid can be done in several ways, but to achieve the highest purity, laboratory material is needed. A first extraction is made which is then mixed with hexane and acetic acid, filtered and then the resulting liquid is introduced into a rotary evaporator. Using heat, pressure and movement, this liquid is converted into Delta 9 tetrahydrocannabinolic acid, to which Methylene Chloride, Sephadex LH20 and Chloroform are added. At this point we already have an extract of high purity, but to refine it further you must put it back into the rotary evaporator, mixed with Methanol and filtered, the Methanol is evaporated, a solvent is added and it is introduced for the last time into the rotary evaporator to eliminate this last toxic component.

As a result, a 99.9% pure crystalline THCA remains, but of course, who can afford to do that crystallization process with all those instruments? Well, most of us can’t, but fortunately there are other ways to get THCA without solvents.

THCA Crystal Macro Photography*

👌 How to make THCA with Terpene Sauce from Rosin

This is a much easier, faster, safer and more affordable method. It involves mechanically separating THCA by applying heat and pressure, thus removing the lipids, waxes and impurities it contains. All you need is a Rosin press, baking paper, 120 and 25 micron filter screens and resinous cannabis.

The first thing is to smash the weed with the 120-micron screen, the rosin is collected and joined in a piece that we can homogenize to make it look better. Then we put the piece in a 25 micron rosin filter, wrap it in an oven paper envelope, preheat the press to 122º F. (50º C.). We put the envelope with the rosin and close the plates so that it makes contact but without squeezing, we only want to heat the piece for about 25 or 30 seconds. Once this time is over, we start to press gradually, being careful not to break the screen filter, and when we reach the maximum pressure, we leave it there for about 30 minutes. Then we take out the envelope, in the paper will be stuck the terpene sauce that we have to keep, and on the other hand we have the rosin piece that we will leave in the screen and change the paper of the oven, to go to the second stage.

This time we will raise the temperature of the press to 140º F. (60º C.) and repeat the process, but in this case for 40 minutes. After this time we remove the paper with the terpene sauce and change the oven paper, we raise the temperature of the press to 158º F. (70º C.) and we step carefully again for another 40 minutes. After this pressing, the terpene sauce will start to come out darker and more viscous, so the mesh will have to be changed to continue purifying. The whole process is repeated once more, but this time at 176º F. (80º C.) and for approximately 30 minutes. If everything goes well after this compression we should already have a part of the THCA without solvents finished, it will look white and hard, and another part of the piece that will continue with a darker tone and smooth, that can be put together, change the screen and go back to 176º F. (80º C.) for another half hour.

Image of how the THCA rosin looks after several pressure applications*

How to make THCA from Rosin Hash

It can also be done in less time using Rosin hash, that is, a rosin concentrate made with Ice O Lator. In this case we need the press, baking paper, 25 or 37 micron filter nets and a good extraction of bubble hash “Fresh frozen”.

In this case the press must be heated to a temperature of 131º F. (55º C.) or 140º F. (60º C.). While it is heating we prepare the extraction. You must make a square or rectangular piece with the bubble hash and put it in the filter, wrapped it in the oven paper and put it between the hot plates of the press.

We close the plates until they start to squeeze the paper, we leave it like this for about half a minute so that it takes on temperature and then gently continue to press it to its maximum. We left it about 1 minute and we opened the plates, we took out the extraction that will have solidified enough and we placed it in another filter mesh for a second compression, and the paper that contains the first quality terpene sauce we leave it to rest.

For the second pressing we raise the temperature of the press to about 176º F. (80º C.) and we repeat the process but for a longer time, we can leave it up to 3 minutes without problems. When we open the paper we will see that the remaining terpene sauce is more solid and dark and the THCA block is whiter and harder. At this point we already have a good concentrate, but it can be further refined with another pressing at a somewhat higher temperature and leaving it longer.

Later, if we want to crystallize the THCA and make diamonds, we will have to heat it to a temperature of about 248º F. (120º C.). After a while we will see how it melts, at that moment we can take advantage of it to break it into small pieces and add the terpene sauce.

Image of THCA’s diamonds with terpene sauce*

✅ How to use or consume THCA

As with most cannabic concentrates, the best way to take them is with a bong or vaporizer. A pure THCA dab can satiate even the most experienced consumer, as it is the highest THC content extract available so far.

Can you smoke THCA in a joint? Well, you can also mix it with tobacco and make a joint, I do know one case of 4 high tolerance smokers who could barely finish a THCA joint.

Medicinally the best form of consumption is ingested and, as with other cannabinoids, the top product is THCA oil. With just a few drops of this product you can feel its therapeutic effects.

Image of a THCA oil bottle by Emerald brand*

🚀 Conclusion

Tetrahydrocannabinolic acid has medicinal properties of its own and it can also be made psychoactive. Many studies are still needed to prove the effectiveness of this cannabinoid in humans, but according to the research that has been done so far, the future looks very promising. We’ll be happy to tell you all the news about it, so don’t hesitate to follow us and, if you liked this post, we’d appreciate it if you share it with your friends.

Do you know what Cannabis THCA is? In this post we will explain its effects, benefits, consumption methods and more…