A rosin press can be the easiest, cheapest, and most fun way to get started making extracts. This solventless extraction technique can be used in the comfort of your own home, but it is also one of the most popular forms of commercial extraction, with entire businesses built on rosin production. We are going to explain what exactly rosin is, what a rosin press does, how to use a rosin press, and more.
What is rosin?
Rosin is a newer extraction type compared to others like dry sift, ice water and dry ice extractions that have been around for quite some time. While solvent-based extracts are relatively safe due to purging, some people are still hesitant to consume anything that comes in contact with solvents. For this reason, rosin is a really appealing extract. You are likely wondering how rosin presses work, if they don't use any solvents to extract the compounds, terpenes, and other parts of the plant.
How does a rosin press work?
A rosin press machine uses low heat and high pressure to melt and force the resin from the plant and onto parchment paper. Essentially, you just stick your flower or trim into the press, and let it do its magic! The exact process will depend on what type of rosin press you have, but the end resut is the same - the compounds you want to consume are squeezed from the plant matter onto the parchment paper. When it comes to rosin, you definitely don't want to throw in low quality flower. The saying is "quality in, quality out". We have seen the most success making rosin when actually starting with either dry sift or bubble hash. This will produce the largest yields per press, while eliminating any plant unwanted plant matter. We recommend at the very least using high quality, manicured flower.
What are the different types of rosin presses?
As we briefly mentioned, different types of rosin presses will operate slightly differently. Some of the cheaper ones require more work on the operators part, whereas others are super easy plug-and-play presses.
Manual Rosin Presses - these are designed with the home grower in mind. These portable rosin presses are lower cost compared to others and do not require an air compressor or pump to operate. They use a hand crank or twist-style mechanism to apply force onto your material. If you are just looking to dabble (no pun intended) in rosin pressing, a manual rosin press is a great way to get started on a low budget. The one problem with these manual rosin presses is that they tend to be inconsistent compared to others.
Hydraulic Rosin Presses - these heavy-duty presses use a hydraulic ram powered by an air compressor or external rosin pump to operate. Hydraulic rosin presses are the most commonly used rosin press and produce insane amounts of pressure. These are best for industrial or commercial applications and are one of the most popular styles we have here at Hydrobuilder.
Pneumatic Rosin Presses - these rosin presses are considered top-tier in the extraciton industry, and use an air compressor to activate the pneumatic cylinder. Pneumatic presses are revered by professionals for their even weight distribution and oil-free cylinder, minimizing any maintenance.
Electric Rosin Presses - Electric rosin presses are gaining popularity for their ease-of-use. There is no need for an air compressor or external pump, and these are all completely plug-and-play. If you have a wall outlet, you can use an electric press. While they carry a higher price tag, they can justify it by their ease of use.
What Is The Best Temperature For Pressing Rosin?
When Pressing Flowers - When pressing flower, we suggest with temperatures around 220°F - 240°F for about 30 - 45 seconds. You can press longer as long as you make sure you get the rosin off the heated plates as quickly as possible to prevent any degradation of terpenes.
When Pressing Dry Sift or Bubble - When pressing dry sift or bubble, we recommend temperatures around 180°F - 210°F for 45 - 90 seconds. Again, we suggest removing the rosin off the heated plates as soon as you can to prevent loss of terpenes and darkening of the rosin.
Can you cold press rosin?
There is a technique for pressing rosin known as "cold pressing", which involves operating at temperatures much lower than what is considered standard. "Cold" refers to temperatures between 160-190 degrees Fahrenheit, which really isn't cold at all! However, compared to the normal temperatures you would press rosin at, it is much lower.
So, you can cold press rosin, but that doesn't mean any heat - just lower. You will also need to press much longer (1-5 minutes), and with more pressure. You'll see an increase in terpenes, but likely a decrease in potency.
How much pressure do you need for rosin?
To press the best rosin, you need to apply 300-1,000 psi. Pressing flower will need higher psi, whereas hash will require lower psi.
Which Rosin Bags Should I Use?
For dry sift or bubble: Use 36 micron or 72 micron bags - 72 micron rosin bags will offer higher yields compared to 36 micron rosin bags, but the 36 micron bags will provide the highest quality product.
- 36 micron - Most filtration available, highest quality output rosin for use with dry sift or bubble.
- 72 micron - High level of filtration, increased yields over 36 micron when dry sift or bubble.
For trim, flower or shake: Use 115 micron or 90 micron bags - You will get the highest yield from a 115 micron rosin bag over a 90 micron rosin bag, but a 90 micron bag will give you more filtration and slightly higher quality product.
- 90 micron - Higher level of filtration for use with flower, trim, and shake rosin pressing
- 115 micron - Ideal level of filtration and high yielding for use with flower, trim, and shake rosin pressing
What's the best rosin press?
The best rosin press for you will depend on your budget, how much rosin you want to press and how often, and will also come down to personal preference. If your budget is limited, you won't be able to afford the "best" rosin press, but we still have some AMAZING rosin presses for growers on a budget. You cannot go wrong with brands like NugSmasher, PurePressure, Sasquash, or Rosin Tech Products.
If you want to read our full review of the Best Rosin Presses Of The Year, you can get an understanding of which rosin press we would recommend for you.
If you want t amore broad understanding of extraction, read our learning center article about Post Harvest Extractions: What Does it Mean and How Does it Work? or give one of our experienced growers a call at 888-815-9763 to learn more about making rosin and using a rosin press.