What Is Rosin? A Solventless Extraction Technique
Recently the rosin technique has been gaining a lot of traction in the cannabis industry as it is a simple and affordable way to produce a quality product, within seconds. This simple technique separates the resin from the plant material by using heat and pressure. The yields are much similar to other extraction techniques, ranging between 10-15% with flower and even more with dry sift/kief.
How To Make Cannabis Oil With Rosin Tech
The rosin technique is quick simple and affordable, allowing anyone to create quality solventless hash in a matter of seconds. To get started making rosin, one would only need a few basic tools in order to create a quality finished product, but not nearly as many as you need with other techniques. The tools needed to make rosin include:
Flat Iron (2+” with temperature control) or other heat/rosin press
Non-stick parchment paper
Collecting device (TI dabber, razor blade, etc.)
Processing material (flower, dry sift, bubble hash)
25u micron screen
What Temperature Should I Press My Rosin at?
When it comes to pressing your own rosin, choosing which temperature is best to extract with may be the most widely debated variable in the rosin community. The first step to selecting the right temperature to perform your rosin extraction will depend on your starting material. Dried flowers generally yield the best results when pressed between 180-220F. Lower temperature extractions frequently result in a more stable consistency, such as "budder" "crumble" or "batter," while pressing at the higher end of the temperature spectrum may result in "sap" "shatter" or "taffy."
There are no hard rules when it comes to choosing a temperature, but just to generalize, when pressing flowers, lower temperatures will result in a more flavorful, terpene rich extract, at some relative expense of overall yield. Terpenes are the aromatic oils responsible for the incredible spectrum of flavors in your rosin, and part of what makes squishing your own extracts such an enjoyable process.
There are two trains of thought when it comes to pressing rosin, some prefer to use lower temperatures over a longer period of time, while others opt for higher temperatures with quicker pressings. We feel that the terpene profile tends to most noticeably degrade above temperatures of 250F, but as always, experimentation is highly encouraged! It's always suggested to double check your plates temperature in comparison to the PID for the most accurate extraction. A common cooking probe thermometer or K-type thermocouple works well for measuring this.
Pressing a few smaller samples of flower, perhaps one gram at a time, at various temperatures, is a quick way to compare the different qualities of rosin samples before committing to a larger extraction. This makes it easy to check for flavor and yield, as each unique phenotype will have its own nuances just waiting to be concentrated into beautiful rosin.
Because temperatures can heavily affect yield, higher temperature extractions, around 250F are excellent for producing oils to be later prepared for edibles, as those terpenes would be otherwise lost during further decarboxylation of the oil.
When it comes to rosin pressing dry sift and hashes, these products have already been pre-processed and concentrated, which means pressing these materials can be achieved with lower temperatures than those used for flower rosin, as the oil does not have to navigate through as much plant material.
When pressing sifts or various types of hashes, 140-180F is a good starting point. The highest quality starting material may be pressed at even lower temperatures. It's important to experiment with PSI, temperature, and duration of extraction to find your ideal balance when pressing hash rosin. Keep in mind that like flower rosin, when pressing hash the end products consistency will change based on the temperature used during the extraction and the duration of the extraction. You can again expect a budder consistency with a lower temperature squish, and other consistencies are likely to auto-budder after a few days.
Managing Temperatures with MyPress
The MyPress Rosin Press features an easy-to-read LCD display and easy button layout.
The temperature settings range from 100 to 250 degrees Fahrenheit depending on your
needs at the time.
Precision Temperature Control Benefits
Control of temperatures within a precise 10-degree range
A convenient plate activated timer that counts up when the plates close
Counter pauses when plates are open and automatically resets to zero once the
1/3
plates are closed again
This degree of digital control allows you to make the best quality product based on yourstarting material.
Temperature Ranges for Pressing Rosin
Lower temperatures provide you with oil of a buttery honey-like consistency that’s stable
and contains more flavor. Higher temperatures provide you a sap-like consistency with less
flavor and terpenes but larger yields by weight.
Here’s a general range of times and temperatures you should use depending on your
starting material:
Flower: Stay within a temperature range of 180-220 degrees for a period of 60-180
seconds.
Higher Quality Sift: Stay within a temperature range of 150-190 degrees. Limit your
pressing time to between 90-300 seconds.
Lower Quality Sift: Raise your temperature range to within 180-220 degrees. Keep
the pressing time to somewhere within 90-300 seconds.
MyPress delivers enough pressure to where you should never need to go above 220
degrees.
How Much Pressure To Make Rosin
A lot of people who make their own rosin press get 20-ton jack presses, because they think more pressing power is better. That is not quite true.
The figure that is important is psi (pounds per square inch) at the bag. The overall pressing power of a press is only one factor that affects psi at the bag.
Another factor is the size of the bag (which is obviously also related to the size of the pressing plates). The ideal plates and bag are long and narrow. A rectangular shape gives you more perimeter (where the rosin can escape the bag) and less area in the middle (where the rosin can get stuck).
Rectangular bags thus give you better yields from a smaller pressing area, i.e. the total size of the bag in square inches (or square centimeters). And since the surface area of the bag is smaller, you need less overall pressing power to deliver the required psi.
We’ll look at an example below to help make this all clear.
First, let’s see what the required psi actually is.
Rosin Tech Steps:
Step 1: Prepare your processing material by breaking it down to .2 – .5 increments. Cut 10-20 pieces of parchment paper in 4” x 8” strips. Preheat the flat iron to 200*F – 340*F (the lower the temp, the tastier the end-product). Lower temperatures (250°F- 300°F) = more flavor/terpenes, less yield, end material is more stable (shatter), where as higher temperatures (300°F- 335°F) = less flavor/terpenes, more yield, end material is less stable (sap). Some extraction artists claim the best way to make Rosin is at 302°F (150ºC), with 4-6 seconds of pressure, using just 0.25 gram samples in each run — but this process has not been confirmed by Medical Jane or any other official studies.
Step 2: Take one of the small increments that you prepared and wrap it in the center of the 25u micron screen. Place the screen with the product on a piece of parchment paper and then fold the paper over, leaving the product in the center. Place the parchment paper on the flat iron and apply pressure for 3-5 seconds directly on the product.
Step 3: Remove the pressure from the flat iron and take off the parchment paper, unfold the parchment paper. The starting product will be surrounded by the rosin, remove the product being careful to leave all of the rosin behind. Take your collecting device and scrape the parchment paper to collect all of the finished product.
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