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how to make cannabis rosin

How to make rosin

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Contents

  1. Steps for making rosin
  2. What’s a “good” yield?
  3. How do the pros press rosin?

If you’re unfamiliar with the rosin making process, get ready for a cannabis DIY experience that could change your consumption life forever. Rosin is a concentrate made by exposing cannabis to heat and pressure in order to force out the terpenes and cannabinoids found in the plant’s trichome glands. Rosin can be made out of flower, dry sift (kief), or subpar hash with a few tools you likely have around the house.

Rosin is a concentrate made by exposing cannabis to heat and pressure in order to force out the terpenes and cannabinoids found in the plant’s trichome glands. Photo by: Gina Coleman/Weedmaps

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Since rosin is created without the use of solvents, which can alter the flavor and resulting product, it’s preferred by consumers who don’t want any chance of having residual, man-made chemicals in their concentrates.

This extraction technique has been used by other industries for thousands of years. Imagine squeezing the oil out of an olive or the juice from a grape. The rosin process literally presses the starting material until it produces a potent, solventless concentrate. It can even turn hash that just won’t melt into a dabbable product.

Rosin technology has been around for decades, but it didn’t really take off until Phil “Soilgrown” Salazar (@soilgrown_solventless) began sharing photos of his rosin experiments on social media and discussing his techniques with the cannabis community. While Salazar didn’t invent the process, he did play a huge role in creating the hype that has spurred many solventless enthusiasts to begin experimenting on their own.

A post shared by Soilgrown Solventless (@soilgrown_solventless) on Nov 15, 2015 at 10:11am PST

Ready to join the fun? Before you make your first batch of rosin, you’ll need a hair straightener, parchment paper, cannabis, a rosin bag (optional), heat-resistant gloves (optional, but recommended) and a dabber to collect the rosin when you’re done.

A hair straightener with 2-inch plates and customizable temperature controls work best, but the process will still work with a straightener that has low, medium, and high settings. It may just take a little more trial and error.

Temperature plays a big role in determining the quality and overall yield and the ideal temperature is heavily dependent on the chemical makeup of the cannabis used. If your flower, dry sift, or hash is terpene-rich, a lower temperature is needed. This is because the terpenes squeezed out of the trichome glands during the initial press act as a natural solvent to facilitate the rosin process. With fewer terpenes to play that role, you’ll need more pressure and heat to coax the cannabinoids out of the glands.

As a general rule of thumb, temperatures between 250-300 degrees Fahrenheit, or 121-149 degrees Celsius, will yield a more stable product, like shatter. Temperatures between 300-335 degrees Fahrenheit, or 149-168 degrees Celsius, tend to result in a sappier texture.

You can make rosin by pressing a cured nug, dry sift, or hash directly between two pieces of parchment paper and apply heat using a hair straightener. Photo by: Gina Coleman/Weedmaps

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You can make rosin by pressing a cured, gently broken down nug directly between two pieces of parchment paper, or by placing dry sift or hash into a rosin screen or mesh bag and placing the bag in between the parchment paper. While typically used by more experienced rosin makers, these screens and bags are used to filter out plant particulates that can make their way into your finished product. The smaller the screen size, the more particulates it will hold back, but it will also restrict the flow of your rosin and possibly reduce your overall yield.

Choosing the correct screen size is a delicate balance should you go that route. Finer mesh screens (25-45 microns) are ideal for any form of dry sift or hash. Larger mesh screens (70-120 microns) can be used for either lightly ground nugs or trim.

We recommend using heat resistant gloves to avoid burning your fingertips, many hair straighteners come with a pair and if not they can easily be found online or at a beauty supply store. If you are using a hair straightener, you will need to use your hands to apply pressure by squeezing the tip of the flat iron. Do this at your own risk and with caution.

It’s important not to overfill screens, bags, or even parchment paper with loose bud — or to apply too much pressure or heat too fast. A rosin bag that’s too full could burst, screens with too much material in them can overflow, and overflowing buds can take away from the efficiency of the process. Start with low pressure and increase slowly for the best results and don’t overload your bag or flatiron.

Steps for making rosin

Step 1: Break down the plant material and mold it into a small rectangle. This is done to reduce any plant particulates that may end up in your rosin. Also, make sure to use buds that are properly cured and not too wet or too dry.

Break down the plant material and mold it into a small rectangle.

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Step 2: If using a rosin bag, place the plant material into the filter. We recommend nylon food-grade screens or a mesh bag. (This step is optional for flower, but necessary for hash or dry sift.)

If using a rosin bag, place the plant material into the filter.

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Step 3: Set the temperature on your hair straightener or press. Our advice: Start with low temperatures and work your way up.

Set the temperature on your hair straightener or press.

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Step 4: Place your bag or loose flower between two pieces of parchment paper. Use only as much material that will fit under the heating element. It is important that you leave a couple of inches of extra parchment paper on all sides to catch the rosin that is produced. You don’t want rosin to spill over onto the plates.

Place your bag or loose flower between two pieces of parchment paper.

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Step 5: Press the parchment paper with the preheated straightener or plates for 4 to 30 seconds. The time you need to press depends on the quality of your flower. Pressing firmly with the straightener laying flat like a stapler will generally yield better results. This may take a few times experimenting to get the hang of it.

Press the parchment paper with the preheated straightener or plates for 4 to 30 seconds.

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Step 6: After removing the flower from the parchment paper, check the amount of oil.

After removing the flower from the parchment paper, check the amount of oil.

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If you’ve got a low yield, you may need to place the parchment back under the straightener and repeat the process one or two more times.

If you’ve got a low yield, you may need to repeat the process one or two more times.

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Step 7: Once you have pressed your product, use a dabber to collect the rosin.

Once you have pressed your product, use a dabber to collect the rosin.

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Step 8: Package or store the rosin for later use or turn it into rosin taffy by stretching, pulling, and twisting it with the dabber until it’s a taffy-like consistency.

Package or store the rosin for later use or turn it into rosin taffy.

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What’s a “good” yield?

The goal of pressing rosin is to get all the cannabinoids and terpenes out of the trichome glands. Theoretically, if your cannabis has 18% cannabinoids and 2% terpenes, the yield you’d get from pressing 1 gram of flower would be 0.2 grams of rosin. Of course, a lot of factors contribute to the overall output and quality of your rosin.

If you don’t feel like you got everything out of your first run, you can always grab new parchment paper and press the cannabis again. Increasing the temperature or pressure on your second run will ensure you get every last bit of oil out of your product.

Keep in mind that when you’re pressing nugs to make rosin, you’re squeezing the plant matter. Under imperfect conditions, that plant matter can make its way into your final product, but that doesn’t mean your product is bad.

Rosin is commonly judged by a 6-star rating system used to judge all solventless concentrates. Your rosin should bubble when exposed to heat. Any plant particulates or impurities will reduce the amount of bubbling, which correlates to the star rating: 1-2 being the lowest and 6 being the highest — and the most difficult to produce. While it’s true that the higher the star, the better the dab, a little plant material in your rosin isn’t going to be a deal breaker.

Practice makes perfect, and the more you get your set up and filtering processes down, the higher quality rosin you’ll be able to produce.

How do the pros press rosin?

Professional rosin manufacturers and at-home enthusiasts may opt to purchase press kits that contain hydraulic presses, heat controllers, and more in order to process larger quantities of rosin and have better control over all the parameters involved. Rosin press prices range from $300 to more than $4,000, with an array of accessories to customize your set up.

Professional rosin manufacturers and at-home enthusiasts may opt to purchase press kits that contain hydraulic presses, heat controllers, and more. Photo by: Gina Coleman/Weedmaps

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Whether you’re interested in trying your hand at rosin with a hair straightener or looking to invest in a more high-tech setup, pressing rosin is a tinkerer’s playground, with a plethora of temperature and pressure options to yield the heady results you seek.

How to make rosin Copy article link to clipboard. Link copied to clipboard. Contents Steps for making rosin What’s a “good” yield? How do the pros press rosin? If

How To Make Your Own Homemade Rosin (dabs)

by Sirius Fourside

Table of Contents

What Is Rosin?

If you’re going to make Rosin, it’s a good idea to know what you’re getting! Rosin is a solventless (that means no chemicals) cannabis concentrate that you can make at home. Since it’s solventless, it’s a lot safer than concentrates that use solvents like BHO, Shatter and Wax. Rosin is versatile; you can place it on flowers as a “topper”, or you can smoke it as a “dab” if you have the appropriate equipment. In fact, if you’re looking to turn your weed into a dab-able concentrate, rosin is a great way to go.

Freshly made rosin on a wax tool

Rosin vs Resin vs Live Resin

If you’ve been to a dispensary, or if you’re active in the cannabis niche online, you’ve probably heard of these three similar sounding things. They’re actually pretty different from each other, but it’s not as complicated as people make it seem.

Rosin

Rosin is the result of putting cannabis under intense heat and pressure. If you stick some weed between two hot plates and press the plates together as hard as you can, a golden/golden-brown substance will be left over and that substance is rosin!

Resin

When you hear the word resin, it can refer to one of two very different things. One usage refers to “the sticky stuff” on your plants, aka the trichomes. This is the stuff you can collect in a grinder as “kief”. You could also use cold water to agitate resin off your weed (bubble hash) or freeze the trichomes off your plant matter (dry-ice hash).

Resin also refers to the black sludge left over in bongs and pipes after extended use. This type of resin is also called “reclaim”, and many people smoke this leftover gunk so they don’t waste weed. Although this can be effective in a pinch, it’s about as gross as it sounds and we don’t recommend using it. The stuff is sticky and stinky (not in a good way) and it stains anything it touches.

A ball of black “reclaim”; the gross kind of resin

Live Resin

As the newest kid on the block, Live Resin is the most sought-after of these three. Live Resin is a concentrate made from freezing a newly harvested plant then using additional means to extract the trichomes from the plant. This is usually done with a solvent and it takes some sophisticated equipment to do.

Wait, I’ve heard these names before…

If you think you’ve heard the terms “Rosin” or “Resin” before, it’s because you probably have! The lack of legal legitimacy makes it so that many of the terms we use as cannabis growers are repurposed from other stuff.

  • Rosin refers to a substance used on the bows of cellos and violins. Rosin makes it easier for the bows to grip the strings of their respective instrument.
  • Resin is a thick substance made by plants that is usually composed of terpenes. This definition is perfect for what we’re talking about, but Resin can also refer to the sticky stuff from any plant.

Rosin vs Bubble Hash/Kief/Dry Ice Hash

There are already a ton of cannabis concentrates, so it might be hard to remember what the difference is between them. Here’s a really quick breakdown of some differences between some of the heavy-hitters:

Rosin (left), dry-ice hash, bubble hash, kief (right)

Rosin

  • Made with high-heat and intense pressure.
  • Makes a strong, sticky substance that you can dab or put on flowers

Bubble Hash

  • Combine weed, ice-cold water and agitate to make Bubble Hash
  • After drying, you’ll have a crumbly pile of tiny, super-potent pebbles and dust
  • Learn how to make Bubble Hash
  • This stuff just falls right off of dry cannabis if it’s agitated enough
  • Makes a golden-green powder that can be sprinkled on flowers

Dry-Ice Hash

  • Like Bubble Hash, but uses Dry-Ice instead of cold water
  • Dry-Ice Hash is essentially Kief, but using dry-ice makes the process more efficient
  • Learn How to make Dry-Ice Hash

If you’re going to make your own homemade rosin, there are two main methods: you can use a dedicated Rosin Press, or you can use a hair straightener. Both these methods will work, but they each have their strengths and weaknesses. Let’s go through each method of making rosin and some of the pros and cons of each technique.

Before You Start Making Rosin…

Rosin is just plain great! It’s impressive, fun to make, and even more fun to use. However, before you start on your rosin making journey, there are a few important pieces of information you should know:

  1. Rosin is weed intensive. It takes a bunch of weed to do, and if you’re lucky with a high-quality hydraulic press and a cooperative strain, you’ll get 25% of your weed-weight back as rosin. In my experience, a hair straightener should return between 5%-10% while a non-hydraulic press (like the one I use in this tutorial) will get you 8%-17% That number can get a little higher or a lot lower and that largely depends on your rosin press, your technique, and the weed you start with. Some strains will make lots of rosin, and some will make very little. Seriously, your weed will make a huge difference in determining how much rosin you can press out of it.
    1. If you harvest lots of weed at a time like with this method, you can make rosin without much worry.
  2. Making rosin involves high levels of heat. Be careful not to burn yourself during the process of pressing, no matter which method you use.
  3. You will have to experiment a bit. Although you can use the default settings provided below, you’ll do even better if you test out different strains, temperatures and length of pressing time.

Captured rosin looks almost like a Rorschach test

How Much Rosin Will I Get?

This is a common question growers have before they invest their homegrown weed into making rosin. There isn’t an exact answer since no one can predict the future, however, there are a few factors that will give you a good idea of what to expect from your next pressing.

  1. Strain – The strain you use will make a huge difference! Some strains make tons of trichomes and will give you good returns on rosin, so weed will make next to nothing.
  2. Pressure – The more pressure your Rosin Press can produce, the more rosin you’re likely to get.
  3. Grow Method (Lights) – Powerful grow lights are more likely to produce weed with lots of resin. So, good lights = more rosin!
  4. Heat – In short, less heat (down to 220°F) will produce a better product, but less yield. Higher temps will produce more rosin of lower quality.
  5. Moisture – Dry buds will soak up much more of your rosin before it can make it to your parchment paper. Buds at about 62%RH will work great.
  6. Age – Although we can’t say this definitively, our testing shows that newer bud seems to put out more rosin that older bud. This could be a side-effect of moisture, but again, we don’t have proof besides informal testing.

As a very rough estimate, you can expect about

  • 5-10% return from a hair straightener (in good scenarios)
  • 8-17% returned from a manual press
  • 20-25+% from a hydraulic press

Factors 2 and 4 are largely dependent on your rosin press. In general, you can expect the most rosin from a hydraulic press, a fair amount of rosin from a manual press, and the least from a hair straightener.

The NugSmasher XP – A high-quality Rosin Press with a price tag to match!

If you want a high-quality rosin press, be prepared to PAY!
(Note how the price jumps from $500 to $2000. Guess which ones are hydraulic…)

All 6 factors will drastically affect how much rosin you’re able to press out of your cannabis. When pressing your rosin, try testing out these factors individually. Not only will you have a good time producing rosin, but you’ll learn the best way for you to maximize the amount of rosin you get in while maintaining a level of quality you like.

How to Make Rosin with a Rosin Press

The MyPress Gen 2 Rosin Press – A midrange press that gets the job done

  • Easier method
  • More efficient; you’ll get more rosin per press
  • Fun! Making your own rosin is actually fun with a press!
  • Expensive. A decent press costs a pretty penny and higher-end presses can cost thousands!

You’ll want to thoroughly read the instructions for your Rosin Press before you use it. Although the instructions are simple, they can vary quite a bit depending who makes the press.

What You’ll Need:

  • Rosin Press
    • In this tutorial, I’ll be using the MyPress Gen 2, but there are higher grade (more expensive) ones like the Nugsmasher XP
  • Minimum 1g of weed (you’re going to want more, but only press 1g at a time unless your machine says otherwise)
  • Parchment paper (do not substitute with wax paper)
    • You can get squares or a roll
  • Pollen press (not absolutely necessary, but it helps)
  • Wax collecting tools
  • 25-micron press bags (for pressing hash/kief)

Making Rosin

  1. Plug in your Rosin Press and turn it on.
    • You’ll need to figure out what temperature works best for each strain, but 220°F is a good place to start.
  2. While your press heats up, grind up 1-1.5g of cannabis. You can also just use a whole nug to avoid wasting resin.
    • You can also press kief, dry-ice hash, or bubble hash.
  3. Use your pollen press to turn your weed or hash/kief into a thin disk.
  4. Make an envelope out of parchment paper for your weed.
  5. Place your weed at the back of the envelope.
    • If you’re using hash, place the disk in a 25-micron bag first to keep the hash from absorbing rosin.
    • Warning: the micron bag will absorb some of the rosin. It’s just the way it is.
  6. Open the heated plates of your press.
  7. Place the envelope on the bottom plate and then press your weed by closing the plates (consult your Rosin Press instructions)
  8. Leave the disk between the plates at 220°F for 60-90 seconds.
    • You’ll have to experiment to find the best heat/time combination for the strain you’re doing, but that’s part of the fun!
  9. Carefully open the plates (please don’t burn yourself) and remove the envelope
  10. Carefully open the envelope. Note the sticky substance all around your weed. That’s homemade rosin!
  11. Take out the used disk of weed without letting it touch the rosin and allow the rosin on the parchment paper to cool for about a minute.
  12. Use a scraping tool to collect your new rosin.
  13. (Optional) Press your weed once more to get all the rosin you can.

How to Make Rosin with a Hair Straightener (the low-budget method)

Kipozi makes a high-quality hair straightener that can also make rosin!

  • Dirt cheap compared to a Rosin Press. If you have a hair straightener or a very forgiving partner with a hair straightener, you already have most of what you need!
  • The act of pressing only takes about 20 seconds compared to a Rosin Press that takes 90 seconds.
  • The resulting product just isn’t as good.
  • Much more likely to burn yourself!
  • Little-to-no control over the level of heat. This can be fixed by using a high-quality straightener like this one.
  • Less efficient. You’ll actually get less rosin per press than if you had used a dedicated press.

What You’ll Need:

  • Hair Straightener
    • I used a hair straightener by Kipozi and honestly, I was surprised at the options it had and how well it performed.
  • At least 1g of weed (doing more than 1g at a time can be wasteful)
  • Parchment paper (do not substitute with wax paper)
    • You can get squares or a roll
  • Oven-safe gloves
  • Pollen press (not absolutely necessary, but it helps)
  • Wax collecting tools
  • 25-micron press bags (for pressing hash/kief)

A few rosin presses collect on a wax tool. Yummy!

Making Rosin

  1. Grind up 1g of cannabis or just use a whole (1g) nug if you’re feeling saucy.
    • You can also press kief, dry-ice hash, or bubble hash.
  2. Use your pollen press to turn your weed or hash/kief into a thin disk.
    • Again, you can also just use a whole nug to avoid wasting resin.
  3. Use your parchment paper to make an envelope for your weed.
  4. Place your weed at the back of the envelope.
    1. If you’re using hash, place the disk in a 25-micron bag first to keep the hash from mingling with the rosin.
    2. Warning: You will lose some rosin to the press bag. I know it hurts, but it’s normal.
  5. Plug in your hair straightener and turn it on. Make sure it’s on a surface that won’t be affected by the heat (like a kitchen counter).
    1. Turn it down to the lowest setting if you have the option. If your straightener has a temperature control like this one, set it to 220°F.
  6. Put on your oven-safe gloves while the hair straightener heats up.
  7. Place the envelope on the bottom heating element of the hair straightener plate and then close the straightener around your weed-envelope.
  8. Press down firmly on the hair straightener for 15-20 seconds. You should hear sizzling.
    • Seriously, press down hard!
  9. Remove the envelope from the hair straightener and put the straightener out of the way so you don’t accidentally burn yourself.
  10. Carefully open the envelope. Note the sticky substance all around your weed. That’s homemade rosin!
  11. Take out the used disk of weed without letting it touch the rosin and allow the rosin on the parchment paper to cool.
  12. Use a scraping tool to collect your new rosin.
  13. (Optional) Press your weed once more to get all the rosin you can.

Using and Storing Rosin

Now that you know how to make rosin, it’s important that you know what to do with it!

Usage

Rosin can be placed on top of flowers to make your bud stronger and tastier. It can also be used directly as a dab if you have a dab rig or a portable dab vaporizer/rig.

Storage

Firstly, you’re going to need containers to put your rosin in. Rosin is super-sticky (and some strains can be even stickier than others), so you’ll want a silicone container so your product is easier to handle.

There are the “standard” silicone containers you’ll see in dispensaries, and then there are cool wax containers like these if you prefer a little more flair.

Officially, it’s advised that rosin only is kept for around 3 days in regular conditions, or up to a week if stored inside an air-tight container in a refrigerator. The reasoning behind this schedule is that rosin will lose its distinctive flavor quickly, and keeping it for a short amount of time will prevent that from happening.

Just to be safe, this is a good rule to follow. It ensures that you don’t waste anything and that any rosin you make will be super-fresh. That being said…

Some growers just aren’t as concerned with flavor profiles. If your main concern is potency, you can probably keep your rosin for much longer without a noticeable drop in its apparent strength. I’ve stored rosin at room temperature in a non-airtight container for about 3 weeks and it felt just and powerful as the day I got it.

There you have it! Now get out there, make a bunch of tasty rosin and send us pictures to show how well it worked out for you!

Rosin is a potent, solventless cannabis concentrate that is most popular when used by itself as a "dab". Learn how to make press your own Rosin at home!