Rosin Pressing FAQs
What is rosin?
Rosin is a natural solventless concentrated extract of plant material. It’s made by applying a set temperature and amount of force to secrete an extract often having a sap like consistency. It can also be referred to as solventless hash oil (SHO).
What is a rosin press?
A rosin press is a machine that uses pressure and heat to squeeze out rosin from cannabis plant.
What is a solvent?
A solvent is usually a chemical, such as butane, propane, CO2, or ethanol, that is used to dissolve trichome heads in the process of solvent-based extraction. No solvents are used in rosin pressing.
What things do I need to make rosin?
- A rosin press
- Pre-press mold (recommended)
- Parchment or PTFE paper
- Collection tools (picks and ideally glass stamp are recommended).
How do I make rosin?
- Prepare your plant material. This can be done a multitude of ways depending on the what you have at hand. If you work with buds or trim, grind them first. No grinding is necessary for kief and water hash.
- Make your material into a puck with a pre-press mold. This step is recommended to improve yield and reduce your chances of filter bag blowouts.
- Place the puck into a micron bag and trim excess material from the bag. This step is also optional; skipping it will result in a higher yield but lower quality because of the plant particles in the rosin.
- Place the micron bag into a folded parchment paper.
- Place the bag with the parchment paper into the press and operate your machine accordingly.
What are the recommended press settings?
Cold Pressing: Press at 160°F - 190°F for 1 to 5 minutes or longer. Cold pressing often results in a malleable, batter consistency terpene-rich rosin, but it comes with a sacrifice in yield.
Hot Pressing: Press at 190°F - 225°F for 40 seconds to 3 minutes. Hot pressing produces a sappy or shatter-like rosin. For better terpene preservation, try pressing at at 215°F or below. Generally, the hotter you press, the higher yield you’ll get. However, anything over 230°F generally has a notable drop in quality and terpenes.
Flowers: Flowers can be pressed at 190°F - 225°F for 30 - 180 seconds.
Hash, Kief, Dry Sift: Refined precursors are usually pressed at 165°F - 195°F for 60 - 130 seconds.
For flowers, we recommend starting at 210°F for 85 - 115 seconds and evaluating from there. Usually, pressing at 210°F results in strong yield, great consistency, and high terpene preservation.
Don't forget you can always double press your bags/pucks. Save your pressed leftovers to make edibles!
What filter bags should I use?
We carry three mesh sizes: 25, 100, and 160 microns.
25 micron bags are best used with finer materials such as kief, bubble hash, and dry sift.
100 micron bags provide the best filtration and highest quality output for flower rosin with some reduction in yield.
160 micron bags are the best filter type for flower rosin, a great sweet spot for yield and quality.
When choosing a filter bag material, go for nylon. Nylon is durable, can expand up to 40% without breaking and stretch without loosing its original shape. Stainless steel screens scratch plates and cut yields. Polyester thread bags tend to blowout due to their tendency to shrink with heat.
What is the ultimate humidity level for my flower?
Relative humidity is vital to ensuring your maximum yield. We recommend keeping your flower at 62% to avoid loosing trichomes due to dryness or introducing mildew or mold. Just put some two-way humidity control packs like Boveda 62 in with your material in a jar or other airtight container and store in a dark space. You’ll find this affects how your herb smokes on its own, and it helps minimize harshness and promotes a slower burn.
How do I collect my rosin off the parchment paper without making a mess / tearing it?
The fastest and easiest way to collect rosin from the paper is with a glass stamp. Just press the stamp down on the material, and it will be picked up by the stamp. Then take a pick or large scraper to collect the rosin from the stamp. Some people prefer to use the big scraper alone on the parchment paper, but, if you are not careful enough, you risk tearing the paper and contaminating rosin with it.
You can add some rosin to any bowl pack, joint, or blunt! Scrape up your solventless concentrate onto a dab tool and simply use a lighter to warm the tool and carefully drip the dabs into your smoking device of choice. Just be careful not to get your rosin too close to the edges of the paper or bowl as it will make for a hard, messy roll and clean up.