Bags specially produced for extraction with Qnubu presses. Use: Pour the selected flowers or extracts into the bag. We apply heat and pressure through the Rosin method to separate the botanicals (inside the bag) from our extraction (outside the bag) without solvent in combination with this type of bag. The high quality stitched nylon material allows perfect absorption of the extraction. The dimensions of these bags are 11x5cm and they are available in 7 different mesh sizes: 15µ, 25µ, 37µ, 70µ, 90µ, 120µ and 160µ. Sold in packs of 10 pieces. What is rosin: Rosin is a botanical extraction technique used to extract essential oils naturally and without solvents. By using pressure and heat, we obtain our extraction in a fast and effective way. The technique is very simple: We place the product we want to press between Qnubu extraction paper, Apply pressure to the product to compress it between the two aluminum plates (the pressing time varies from user to user). Remove and open the paper to separate the extraction. Benefits and advantages of the rosin technique: Solvent free (SHO) High yield Parameters: Pressure / heat / time Speed: Your extraction is ready in a few minutes, without additional processes Terpene preservation Plug-and-play system: connect and use Specification: Size: 11x5cm MICRONS: 15, 25, 37, 70, 90, 120 and 160 microns available MATERIAL: NYLON / FOOD SAFE / FDA EAN 8436572051331