Got Rosin?

What is Rosin?

Rosin also known as shatter, which is made through an extraction process that utilizes a combination of heat and pressure to squeeze terpene and cannabinoid rich resinous “wax or sap” from your plant material onto parchment paper or something simlar. The term “rosin” originated as a method of making a product used to lubricate violin bows. The result is a translucent, amber, and sometimes shatter-like product. If executed correctly, rosin will rival the flavor, potency, and yield of BHO, and exceeds those qualities of CO2 extraction systems.  After cooling down and removed from the parchment paper, the clean “wax” is ready to dab.

Why is Rosin so Popular?

Rosin is popular because people want clean concentrates and rosin is 100% chemical free and tastes chemical free also. Another reason for rosin’s growing popularity is that it is a solvent-less technique, meaning the extraction process uses no chemicals, solvents, or foreign substances. Instead, rosin is produced in a mechanical process involving heat and pressure to extract the resin from the plant. Other extraction methods utilize light hydrocarbons such as butane, propane or compressed carbon dioxide (co2) in closed loop, pressure vessel systems. These complex and mechanical systems require a lengthy purge to safely remove most of the residual solvents from the final product.

How Much Pressure is Needed?

The amount of pressure need to extract Rosin will vary depending on your source material freshness and type (flower, bubble, sift etc.) and the temperature used.  Our extensive testing has discovered that between 2000-3500 lbs of pressure and between 185-225 degrees of heat is more than sufficient for Rosin extraction. Anything above that is overkill and does not increase yield while possible damaging terpenes. Our stm 4.0 press will allow you to store up to 50 different presets for future use including temperature, pressure, cycle and dwell settings.

How Much Rosin can I Extract from My Source Materials?

This will vary depending on the type and quality of your source material. The better and fresher your source materials, the better the yield. In our experience, the yield is similar to that you would get out of other extraction methods. Our best quality source materials have produced as high as 30% or more. When you find the optimum materials and settings, our stm 4.0 press will allow you to store multiple user presets for future use including temperature, pressure, cycle and dwell settings.

Ways to Process Cannabis?

You can process cannabis with a number of different methods:

Butane Hash Oil Extractor (BHO)

  • BHO (butane hash oil) which uses butane to push the plant material through a container trapping the cannabis extract and letting the butane pass through (purging).  BHO can provide for fast extraction but with little control which can leave residual chemicals and heavy metals in the final product.  Though some argue that if done properly, no chemicals are left behind.


Co2 System – Expensive, big, slow

  • C02 (Carbon Dioxide) gas with pressure turns it into a liquid from gas and the pressurized carbon dioxide pulls the desired phytochemicals (such as CBD) from a plant.  CO2 is widely used in the food industry for carbonized beverages to removing caffeine from coffee beans to make decaffeinated coffee.  It is very expensive, can be time consuming and possible damage terpenes.  Co2 is deemed to be safe form of extraction.



  • BEST METHOD – Heat & Pressure Pressing (No Chemicals or Solvents)
    Some people use a hair straightener to a heavy duty t-shirt type press to squeeze out the resin extract. Using a professional press, such as the stm 4.0, and processing with only heat and pressure is preferred for maximum efficiency over other methods (such as BHO/Co2).  This process of heat & pressures uses NO chemicals, oils or solvents to remove the resin from the plant material.  It is a 100% natural process, less expensive, often quicker and safer alternative.

Best Method – Pressing 100% Natural & Safe