How to Use Rosin Bags | How to Pack Rosin Bags


We see a lot of people out there having trouble or just simply confused on how to use rosin press bags correctly.  So we came up with a simple guide on how to squish plant material with ease…. First, it’s important to be aware that different plant material should be packed in the rosin bags differently.


– Pre-press the material into a tight brick with no air gaps

– Place along the bottom seam of the rosin bag

– Leave about a half inch at the top to fold over and close the rosin bag


Type of Plant Material:

  •  Flower or Trim Material – Packing flower material into rosin bags is a fairly simple process.  Make sure you don’t grind up your plant material.  Doing this will lose those precious flavors!  It is recommended to use the whole flower. Start off by pushing the flower to the bottom end of the bag.  Then, follow up by continuing to fill the bag with the flower until it is filled.  The rosin bag should NOT be overpacked or super tight because this may cause blowouts. Even for how strong our bags are.  Next, we recommend pushing down on the bag with the flower plant material inside so it is hand squished.  With any excess bag material there is, you’re going to want to cut that off. This prevents your beautiful rosin getting stuck inside the excess bag nylon.  
  • Dry Sift, Hash, Bubble Hash, Kief Material Packing more delicate and finer material such as hash or dry sift material is just a tad different process. It is recommended to use a small funnel to place finer material inside your rosin press bag.  Simply fill up the bag with your material until it is full with about half an inch of rosin bag material being empty. Make sure it is evenly spread out in the rosin bag.  Again, make sure to NOT overfill the bag or make it very thick with finer material.  Next, simply fold back that half an inch of bag material so seal it.  Once that folding is seal done, just press on the bag with your hand so that the plant material is more packed and flattened. To get an even better press, we recommend placing this bag that was just prepared inside another rosin bag and cutting off any excess bag material.

Heating Times:

  • Flower or Trim Material – After experimentation and research, our best results for producing flower material rosin came from pressing at the range of 200-225 degrees F for about 45 seconds to 3.  Rosin pressers personally know their best results just from experimenting! We recommend trying out that degree and time range! 
  • Dry Sift, Hash, Bubble Hash, Kief Material – Again, pressing delicate plant material like this is just a tad different from pressing flower material.  We found that lowering the temperature compared to the flower temperature produced better rosin results.  It is recommended to press around 160-180 degrees F for about 45 seconds to 2 minutes.  Our research found that this heat and time range produced the greatest yield and highest quality rosin. As mentioned before, experiment in these ranges to see what works best for you!

How Much Material Fits in Each Rosin Bag Size:

Flower Material:

2×4 inch – 7 grams

3×6 inch – 14 grams

4×7 inch – 24 grams

2.5×4 inch – 9 grams

2.5×4.5 inch – 10 grams

1.5×4 inch – 6 grams


Hash and Dry Sift Material:

2×4 inch – 24 grams

3×6 inch – 56 grams

4×7 inch – 85 grams

2.5×4 inch – 30 grams

2.5×4.5 inch – 35 grams

1.5×4 inch – 18 grams


Micron Sizing Guide:

  •  Flower or Trim Material – We recommend choosing a micron size between the range of 90-220 micron for flower material.  This is because the micron holes on the rosin bag are larger which allows for a better yield with thicker plant material like flower.
  • Dry Sift, Hash, Bubble Hash, Kief Material – For this finer plant material, we recommend choosing a micron size between 15-90 micron.  The micron holes on the rosin bag will be smaller which is ideal for pressing finer material like hash and kief.

Choosing your perfect micron size for your pressing is all about experimentation to see what works best.  Keep in mind that the smaller the micron size, the lower the yield that will be produced. However, the lower the micron size, the cleaner the final rosin product will be.


In contrast, the higher the micron size, the higher of a yield that will be produced.  However, the higher the micron size, more plant material will flow through the rosin bag and into your final rosin product.


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