Filtration is a key aspect of the manufacture of high-quality solvent-free rosin. Proper filtering practices can greatly improve the purity of the final result, and mastering this tricky art is a must for those who want to up their rosin game.

What is a rosin filter bag?

The Rosin Filter Bag is an accessory that can be used to further purify solvent-free rosin. These are usually nylon or polyester meshes that filter out impurities and plant material as you press, and if used properly, they can greatly improve the overall quality of the rosin.

Benefits of Rosin Filters

The main benefit of using a rosin filter bag is that it creates a screen that blocks plant material while allowing hemp oil to pass through. All the magic of plants is contained in its resin, not the plant itself, and the more you can separate the two, the cleaner and more refined your final product will be.

ECO Farm Rosin Press Bags

Features:

All ECO Farm rosin press bags measure 2 x 4 inches; these bags are pre-flipped, which will help you save prep time, and you can cut the bag into 2 pieces to save material. These food grade nylon press bags are made of strong and high quality nylon; these double needle rosin bags hold tight; the combination of high quality nylon and double needle sewing allows our extraction filters to produce the best yield possible. All nylon filter bags are sewn using the traditional strong double stitch method, during the pressing process of heated rosin, flower or plant material can be retained in the bag, and only the purest oil is extracted

Gutenberg’s Dank Pressing Co. 4" x 7" Rosin Press Bags

Features:

Gutenberg Dank Pressing Co. produces one of the most durable rosin bags on the market. The 4 x 7 inch rosin bag from Gutenberg Dank Pressing Co. is double stitched and strong enough to withstand bursting under high pressure. This 4 x 7 inch rosin bag is available in 8 different micron ratings for your buds or kief with minimal risk of bursting. Each rosin bag from Gutenberg Dank Pressing Co. is made from 100% food grade and dye free high quality nylon. It can withstand temperatures up to 375 degrees Fahrenheit.

Choosing the Best Micron Bags

When using a rosin press for extraction, most rosin manufacturers use filter bags or rosin bags to prevent small amounts of plant material from entering your final product. But no one-size-fits-all rosin filter bag is best for every use. Ideally, you want to maximize both quality and quantity, so choosing the right micron filter is critical to getting the best rosin product, and choosing the right micron for the job is critical.

When looking at rosin filter bags, keep in mind that the smaller the holes on the bag (smaller numbers are, eg 25u), and the larger the holes, the more plant material will be allowed to pass through (higher numbers, eg 220u).

Filter bag size
Now you have to ask yourself, how much plant material do you need in your rosin or extract? Use higher micron sizes if maximizing yield is your main concern and you’re not concerned about small amounts of plant material in the rosin. If creating the purest, clearest rosin or extract is your goal, and you value quality over quantity, then smaller micron sizes are the way to go. To balance the two, use a micron-sized bag in between.

90 micron filter bags have the minimum micron width we recommend for embossing. Bags with a pore size smaller than that start to negatively impact yield with negligible improvement in quality. When embossing, if you want to prioritize quality and are willing to sacrifice a small amount of yield, 90 micron filter bags are a good choice.

120–160 microns is the largest size rosin bag we recommend for embossing rosin, as filter bags above this size begin to sacrifice purity and overall quality as unwanted material can pass through the screen. We’ve found that a 90–120 micron filter will provide a good balance between quality and yield so you can get the most out of the plant material or flower you put into your rosin press.

The material from which the rosin bag is made is also important, as different materials behave differently when heated and compressed. We have found that food grade nylon is the most consistent and durable in most rosin pressing situations.

Conclusion

Rosin derived from flowers and plants is very useful for a number of reasons. It is used in soaps, waxes, fluxes and varnishes. Rosin is an expensive item. Fill the flowers in micron bags to extract rosin. The filter bag is made of high-strength nylon material, which can withstand high temperature and pressure during the pressing process.

These bags contribute to high quality and yield. This broad review is also useful for multiple users.

We really hope our article has been helpful for you to understand the functions and features of filter bags. We also trust that you will buy the right rosin press bag after reading our review.