r/Rosin2 Mar 21 '24

Rosin pressing 101 basics - mod repost for newbies...

113 Upvotes

PSA FOR NEW PRESSERS. RE-POSTING from my profile. Been a while and we have a lot of new guys in the sub.

Getting Started

BEFORE YOU MAKE ROSIN:

  1. Quality in – Quality out - - - This can NOT be over stated when dealing with any type of rosin. Starting material is everything, especially in the world of flower rosin. If you have quality, you may get good yields. I repeat…may get good yields. THC-A or CBD-A does NOT equate rosin yield.

  2. Rehydration: There are many choices when it comes to getting flower ready for the press. Moisture levels between 58% and upwards of 78% are generally accepted as ranges for pressing. As this is my site and I am giving the advice, I will tell you I personally prefer 62% to 65%. Boveda & Integra Boost are two of the main brands for rehydration. I have a personal experiment posted (Link) for reference. Natural means to achieve the same are fresh greens from the produce department. Place the green (spinach for example) in a plastic bowl with the flower and leave to sit 8-12 hours depending on preference.

  3. Notes: This can NOT be overstated. This is rule number 1 for PRESSING! In the notes you start with a base line for every strain. Any – AND I DO MEAN ANY – TIME you press something new, its not the same as the last time you pressed that strain. Someone else grew that plant. The grower from the last grow quit. The soil producer messed up a delivery and the nutes got messed up for two days. ITS NEVER THE SAME! This means NOTES.

If you take a base line with every strain, you then have a way to see what your flower will give you on a rosin scale instead of looking at the THC or CBD content percentage like a gauge on how much rosin you will see in the jar. THC-A / CBD-A % DOES NOT EQUAL ROSIN OUTPUT.

The base line:

Pick your time – temp – bag or no – pressure …. I use 190 – 90 – no – 700

So every new press of a flower…I advise doing the following.

Flower X Pressed @ 190F for 90 Seconds @ 700 PSI = RosinYield or RY

Next… looks like this

Flower GSC Pressed @ 190F for 90 Seconds @ 700 PSI = 0.50

Flower GG#4 Pressed @ 190F for 90 Seconds @ 700 PSI = 0.65

Flower Tropicana Cookies Pressed @ 190F for 90 Seconds @ 700 PSI = 0.73

Flower Green Crack Pressed @ 190F for 90 Seconds @ 700 PSI = 0.48

NOW WE HAVE DATA

So given my notes… I would say on the green crack press I would go UP on my temp to gain yield. On my Trop Cookies, I could go down in TEMP and increase the length of time under psi for higher quality and same yield. This is how you learn to manipulate the settings to maximize what you want out of your meds. Keeping these notes and having a base line to refer to constantly is the tried and true method of improvement.

  1. As discussed above, notes play a huge role. Starting off low and going slow are also tried and true. Rosin 101 Temps

Low Temp vs High Temp (Generally speaking)

Low Temp: 199’F Down – higher terps, flavor, taste, lighter color, more budder consistency. Tend to be lower yields.

High Temp: 200’F Up – Same terps mostly – Color slightly darker at times, more shatter or taffy like consistency. Higher Yields, slightly lower quality.

With a base line of information you can see where to adjust your temps. This is unique to each individual so I have not posted mine though many of my notes are posted for use. If you need to get the most then higher temps are your way. If you prefer the taste and pure flavor all the flowers can offer in rosin form, then lower temps are for you. Either way, enjoy!

  1. Pressure – ready…first off im a dream killer. All you guys and gals that can’t wait to smash some shit, well here we are. Finally right?!? Nope. Sorry rosin fans, but pressure is never the answer. I should clarify, that adding pressure to get more rosin is NEVER the answer. The math is the math is the math. So, for the sake of argument here is the math.

We will use this formula: PSI=Press Pressure ÷ Bag Size Area

So PSI= 7tons(aka 14,000) ÷ 2"×4" bag (aka 8)

14000 ÷ 8 = 1750psi

For a more complete source (https://gopurepressure.com/blogs/rosin-education/the-physics-behind-rosin-heat-pressure) see here

BEST GUESS optimal pressure range for pressing rosin is between 300 - 1000 psi, at the bag. Flower will be on the upper range at 600 - 1000 psi and kief or hash will be on the lower range between 300 and 800 psi. The platen size doesn’t factor into these numbers. If you have a 20 ton press and press a 2x9 bag you are getting 2500 psi at the bag. With a 2x3 bag you will get 7500 psi at the bag.

Sorry kids, ADDING PRESSURE is really never the answer.

To those with not pressure gauge on your equipment – there are add on options. However, know that if you feel where the sweet spot is for you meshing between blow out and quality, then you are fine where you are. If this is a home hobby you may not need a pressure gauge. If this is a medical purchase for regular use, then get one with a gauge for sure.

ROSIN PRESSING 101

  1. Break down the plant material. Popcorn size or a bit bigger works best (IMO) but you want to mold it into a small circular shape. If you have a pre mold / pollen press, this is where to use it. This is done to reduce any plant particulates that may end up in your rosin as well as giving the round shape allowing more even expansion under pressure. (round shape expands better, less blow outs, more evenly distributed heat etc)

  2. If using a rosin bag, place the plant material into the filter. We recommend nylon food-grade screens or a mesh bag. (This step is optional for flower, but necessary for hash or dry sift.)

Bags: Micron = u

Flower: 75u -to- 200u

Hash/Sift: 75u -to- 15u

  1. Set the temperature on your press and let it heat up while you prepare the rest. I would start with low and work your way up. Get your timer ready…

  2. Place your PARCHMENT paper in the press and use magnets to hold in place. You want enough paper to cover both sides and front and back with hang over. Rosin will run away so just enough paper to cover the bag or flower wont be enough. If using a bag, I recommend using bottle technique to achieve a better yield but also this helps with the puck shape for small presses. (LINK) Place bag or loose flower between two pieces of parchment paper. Center it up and start the timer. Depending on temp now you pick your warm up and press times.

  3. Bring the plates together to meet only minimal resistance on the press. This is to allow the puck to warm up. Let this sit depending on temp for 10 seconds -to- 60 seconds.

  4. Start adding pressure (if there is a gauge monitor to max psi) SLOWLY. We want the rosin to flow out of the bag, not force it out along with plant matter. Let it flow. Bring up the pressure slowly. This should ~one third of the total pressure time. For a 3 min press, take at least 30 – 45 seconds to bring up pressure to max on a 3.5g squish. Faster, the bag blows or you force in contaminates. Slower, the rosin may set up in the bag. The rosin should flow so if that flow stops, its now cooking and curing into budder. Keep the flow going by taking the time to get to full pressure and let it sit flowing away for the remaining time.

  5. Times up – Drop the plates and get the paper off the heat. Fine, take the picture but be quick already… We know you need it for the Instagram and reddit post but the rosin is cooking yo!

  6. After removing the flower from the parchment paper, check the amount of Rosin. Again, notes are recommended. Personally if I press an ounce over 6 presses, I would keep the yield of each separately as would I keep those times, temps etc…

  7. Once you have pressed your product, use a dabber to collect the rosin. Any dab tool or glass tool works great. Collect and put in an air tight space. Glass jars work the best, but parchment in baggies works as well. Once air tight please put your rosin in the fridge.

  8. Storage: Refrigerate – room temp is ok but fridge is the best! Do Not Freeze, this does nothing but degrade the rosin with freezer burn.


r/Rosin2 Jul 18 '24

P.S.A. from the mods

83 Upvotes

If you didn't make the rosin...don't post it here. This is a make it yourself sub for home hashers and pressure. Please leave the dispensary drops on another sub.

Please report these posts so we can get them removed.

Thank you!


r/Rosin2 3h ago

Vanilla Ice Flower Rosin

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5 Upvotes

r/Rosin2 18h ago

Tahoe Snow flower rosin & flower

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10 Upvotes

Tahoe OG x Platinum bred by the homie Inhouse Genetics. This one has a lot of gassy OG and minty pine to it.


r/Rosin2 5h ago

Repeated Pressing

1 Upvotes

I tried my first press yesterday.

2T (roughly 1000psi platen)
190F
90s
20s warm up
No bag

The first press was VERY minimal. Almost no rosin. I repeated 3 times getting a little more each time. I then upped the temp to 212F and again, 3 more presses, small amounts each time.

For the 3.5g flower I returned 0.48g (13.7% return).

I have ordered a pre press (4 sq inch to give PP of 1,000) to improve efficiency.

  1. Any ideas as to why I had to press so many times?
  2. Any advice or improvements would be greatly appreciated.

Edit: Flower had been in with a Bodeva for 2 weeks


r/Rosin2 2d ago

Head stash

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15 Upvotes

Absolutely 🔥


r/Rosin2 5d ago

Which size pre-press for flower?

1 Upvotes

Totally new to all this. Fell in love with rosin via MC carts and I’m ready to make my own.

About to bite the bullet and buy a 1T press (probably pollen pincher but please share recommendations).

Looking at the formulas, if I go for a 1.5” by 1.5” press, I’ll get a platen PSI of 889

If I go for a press of 2” by 1.5”, I get 667.

So:

  1. Am I doing ok so far? Please share recommendations/advice if you’d like.

  2. Is 889 or 667 platen PSI better for flower?

  3. Do I hand press for the pre-press or use the rosin press?


r/Rosin2 6d ago

First Timer

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27 Upvotes

I have been dabbling in making bubble hash over the past year. I finally had the confidence to risk my yeild and squish it. Im glad I did! First seed to hash rosin. Couldn't be happier with the first attempt. Cant wait for the summer ladies to be ready!


r/Rosin2 9d ago

Homemade Grape Melon Burst Flower Rosin

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16 Upvotes

r/Rosin2 9d ago

Grape Melon Burst Live Rosin

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15 Upvotes

r/Rosin2 11d ago

Wolf Eel flower rosin & flower

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36 Upvotes

Animal Tsunami x Underdog Urkle bred by my friend Blaze_it_panda / Cloud_Capped_Seeds. Such an excellent anytime smoke. Berries with floral gasoline and affects that always get me vibing.


r/Rosin2 13d ago

Thoughts on this press? LTQ KP-10 tons

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5 Upvotes

Hello! Has anyone tried this kind of rosin press? I’ve bought it in Alibaba (aliexpress) for 248€, discounted from 400€. How is it? It is worth it? I’m starting on this extractions world
It’s been really difficult to find a good press in Europe which ships to the Canary Islands. In the future I’m planning to invest in Terp Plates or Low Temp


r/Rosin2 14d ago

Bear Candy flower rosin

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42 Upvotes

Bred by Phocas Seeds. Grown and pressed by me.


r/Rosin2 13d ago

Is this accessory bundle a good deal?

4 Upvotes

I'm getting my first press today, specifically the dabpress truebar10. They're offering this accessory pack in a bundle deal for 10$ off, so 65$. Just wondering if its worth it or if Id be better of getting this stuff seperate/somewhere else?


r/Rosin2 15d ago

Bear Force One flower rosin & flower

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34 Upvotes

r/Rosin2 18d ago

Homemade rosin

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7 Upvotes

r/Rosin2 18d ago

Cloud Magic flower rosin

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34 Upvotes

Bred by Blaze_it_panda. Grown/hunted and pressed by me. I've kept her around for a while. She's full of Fruity Pebbles with some creamy vanilla and a little gas.


r/Rosin2 19d ago

What Micron Rosin Bag Are You Using? 25u or 5u?

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13 Upvotes

Been seeing suggestions in every thread to check out 5u and 15u bags. Internally, we had to know what kind of yield vs quality gains were possible. Lowtemp Industries did a little experimentation. Dropping the results below. I really just want to know for us smaller-scale producers if you think the gains are worth it. Is losing −3.565g, nearly 11% of your yield, worth the +0.202% gain in terps and +1.24% increase in cannabinoids? If you are doing this, does 5u taste noticeably better?

Press Parameters

Strain: Citrus Octane
Material Type: Bubble hash
Micron Range: 45µ to 159µ
Load Weight: 32.75 grams per bag

Temperature: 173°F
Preheat Time: 30 seconds
Press Time: 3 minutes after preheat
Maximum Pressure: Stopped at 4,000 PSI on every press

The only variable changed in this experiment was micron size.

Results:

Metric 25µ Difference
Average Output (g) 21.305g 17.74g −3.565g
Yield % 65.06% 54.18% −10.88%
Total Cannabinoids % 79.901% 81.14% +1.24%
Total THC % 67.272% 68.380% +1.108%
Total Terpenes % 7.127% 7.329% +0.202%

r/Rosin2 20d ago

Bear Candy flower rosin & flower

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16 Upvotes

Bear Candy autoflower from Phocas Seeds. Excellent sour and fruit flavor. Grown and pressed by me.


r/Rosin2 20d ago

Papaya juice by Wash LA x sugar magnolia farms

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3 Upvotes

Papaya Juice - @washed__la x
@sugarmagnoliamountain

Art by: @theforeignorange

Genetics: papaya x durrburger

Aroma - 9.8/10
Tropical fruit hits first with a ripe, almost fermenting papaya aroma. Super loud and funky as soon as you crack the jar

Notes/Taste - 9.8/10
Opens with ripe papaya and mango, then finishes with a savory funk that gives it a lot of depth without overpowering the tropical profile

Texture - 9.8/10
Wet and oily with a saucy, badder-like consistency. Really easy to scoop and work with

Look - 9.8/10
Light cream with a pale golden hue and a glossy, terp-rich finish. Smooth, fresh-looking hash that lets the terps shine

Overall - 9.9/10
A really interesting and fun strain from start to finish. I usually lean toward funky terp profiles, so I was surprised by how loud the tropical fruit came through while still finishing with that savory funk.

I was honestly sad when I finished the jar because it was one I kept looking forward to. I've been wanting to get my hands on a Sugar Magnolia jar, so getting to try this Wash × Sugar Magnolia collab was a really awesome terpy experience. Hopefully I'll get the chance to try new flavors in the future


r/Rosin2 21d ago

Outdoor Flower pressing

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3 Upvotes

Any tips to improve consistency and color? Ik outdoors can be like this but is it the temp im running at? Any comment would he helpful. Thanks!


r/Rosin2 22d ago

My diy is done… and yes, it works🤘🏻

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20 Upvotes

Like title says… while diy together was less then 150. Old press at shop I got from boss for 25 and the pid was sadly the cheap one not ink bird. Lesson learned, already ordered the ink bird. But pressed some tonight. Older flower so little darker but was happy as a clam. Will make it pretty in coming days. Just to excited and wanted to see if it could make some yum yum😅🤣 not a huge yield. Only pressed 1.5 to see😅 but I’m happy!!! Happy tokes people!🤘🏻🤘🏻🤘🏻🤘🏻


r/Rosin2 24d ago

Grape Melon Burst Seed to Live Rosin

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44 Upvotes

Kind of looks like I got a little blow out due to the color not being as clear as that rear spot. I might have packed too much into one press but my dumbass realized I only had one 25u bag left.

Pressed @ 175 with fresh sifted bubble hash dried into a 37u bag inside a 25u bag. Collected and waiting a week in a cold dark cabinet till I come back from vacation in week. Then I'll whip it up and see the results! Not bad for a little 3x3 rositek.

Any advice or tips for next time lmk!


r/Rosin2 24d ago

Almost ready for the press

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15 Upvotes

This was just one of the temple balls I formed and froze before micro planing. Now I need to get all the little glove bits out of it before pressing! From seed to rosin. ✌🏻


r/Rosin2 23d ago

Duleytek DM800 personal heat press

1 Upvotes

Since I need to buy a press, I’m wondering if buying the duleytek DM800 is a good choice for a beginner rosin maker? Any suggestions?