With the Rosin Bag, your extraction is assured! These small nylon bags allow you to filter out excess plant matter when you perform a Rosin-type extraction. This is achieved by applying strong pressure at a temperature of approx. 165°C to 180°C or 248°F to 356°F (depending on the plant) for a few seconds. Fill the material to be pressed into a Rosin Bag filter, wrap in greaseproof paper and press in the hot Rosin press. The additional filter produces the desired pure concentrate. This concentrate is called rosin, which has a stronger impact and is more intensive than the raw material. The "Rosin Tech" extraction method itself is safe: no butane gas or chemical solvents need be applied - so no risk of explosion. The "Rosin Bag" has a non-stick inner surface so that sticky rosin can be scraped off with a dabber without any problem. The extraction procedure can be repeated up to 4 times, depending on the desired level of purity. The "Rosin Filter Bag" is made of heat-resistant nylon (up to 240°C / 464°F). The bags are available in three different sizes and mesh widths, depending on the quantity and application of the material used. Extremely robust and reusable.