A rosin press compresses dry marijuana into solventless extract.
See also our following resources on rosin:
- Make Your Own Rosin Press For Less Than $100
- How to Winterize Rosin: A Complete Guide
- Rosin Basics: What is Rosin and How To Make The Solventless Extract
An industrial-grade rosin press can extract up to 30% yield from flower. You own table-top hair straightener methods might only yield 5%. New rosin press technology is being researched and explored all the time, because the high end rigs currently range into the thousands of dollars.