Graveda XL Rosin Bags - filter bags for the preparation of rosin

Graveda XL Rosin Bags - filter bags for the preparation of rosin
From 9.45€ *

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  • Graveda-RB-XL-35
For those who like it bigger , we present our XL Rosin Bags - naturally very Graveda-like, at... more
Product information "Graveda XL Rosin Bags - filter bags for the preparation of rosin"

For those who like it bigger, we present our XL Rosin Bags - naturally very Graveda-like, at an unbeatable price directly from the manufacturer, without distributors, marketplace fees or other frills.

Please note: These bags are not compatible with the BottleTech PrePress and insertion aid.


  • XL Rosin Bags for the production of pure extracts.
  • Size: 70 mm x 160 mm
  • Available mesh size: 15µm, 25µm, 35µm, 72µm, 90µm, 120 and 160µm.


  • 10x XL rosin bags

The Right Micron Size for Rosin Bags: A Guide by Graveda

Dear Cannabis Enthusiasts,

The rosin press technique has become increasingly popular in the cannabis community. A crucial factor for the success of this method is choosing the right rosin bag. Here, the micron size plays a central role. But which size is right for your material? Let's clarify that!

What does micron size mean?

The micron size of a rosin bag refers to the size of the holes in the bag's mesh. A micron is one-thousandth of a millimeter, extremely small. The smaller the micron size, the finer the mesh, and theoretically, the purer the rosin concentrate. Why theoretically? Cannabis is a natural product, and flower A behaves differently than flower B. Furthermore, flower A can produce different results on different days due to storage and changes, e.g., in humidity. Since cannabis is a natural product, such differences can be noticeable ;-)

Which micron size for which material?

5 Micron:

Optimal for: Mechanical separation of waxes from terpenes.
Why? These ultra-fine meshes allow for very specific separation, ideal for advanced extraction methods.

15 Micron:

Optimal for: Production of THC-A.
Why? This size is specifically optimized for filtration in THC-A production.

25-35 Micron:

Optimal for: Finest materials like Bubble Hash or Dry Sift.
Why? These fine meshes prevent small particles from passing through the mesh and mixing with the rosin.

72-90 Micron:

Optimal for: General hash extractions and high-quality flowers.
Why? These sizes offer a good balance between flow and filtration, resulting in a clean cannabis concentrate.

120-160 Micron:

Optimal for: Fresh cannabis flowers and optimal yield.
Why? When processing flowers, it's less likely that fine particles will pass through the mesh. A coarser mesh allows for better flow and yield.

Tips for choosing the right rosin bag:

Material quality:

The higher the quality and cleanliness of your starting material, the finer the micron size can be. For dry material, a 90-micron bag is better than a 120-micron bag.

Yield vs. Purity:

A finer mesh can lead to cleaner rosin but may sacrifice yield. A coarser mesh can increase flow, but there's a risk of more unwanted particles getting through.

However, these particles are often not visible even under a microscope. Every Friday, we do a live stream on Youtube and Twitch and try out such things live with you. The live streams are mostly still available at Graveda (YouTube).


Everyone has different preferences and goals. It can be helpful to experiment with different micron sizes to find out which one works best for you and your material.

In conclusion, as always: #gravedalovesyou


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