- 1 x 12-pack of 3.5 Gram 37 Micron Bags
- 1 x 12-pack of 3.5 Gram 90 Micron Bags
- 1 x 12-pack of 3.5 Gram 120 Micron Bags
- 1 x 12-pack of 3.5 Gram 160 Micron Bags
Nugsmasher 3.5 Gram Rosin Press Extraction Bag Kit
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- You are pressing smaller batches of cured flower because your current setup produces inconsistent yields and unwanted impurities in your final product.
- You are upgrading your extraction process because your current bags fail to handle your material cleanly and efficiently.
- You are refining your extraction technique because you need a versatile set of micron sizes to match different starting materials.
- The 37 micron size handles finer material separation during your presses.
- The 90 micron size provides a middle tier for your cured material.
- The 120 micron size works well for standard flower extractions.
- Extractors who switched to these bags say they stopped dealing with impurities and inconsistent yields on smaller runs.
- Makers using the bottle-tech style method report that their pressing pressure became much more consistent across batches.
- Operators pressing fresh cured flower found that switching down in micron size as material dried improved their overall returns.
Nugsmasher 3.5 Gram Rosin Press Extraction Bag Kit
Tired of inconsistent yields and impurities in your rosin? The Nugsmasher 3.5 Gram Rosin Press Extraction Bag Kit is the all-in-one solution for achieving clean, high-quality results with every press. Hand-made in the USA, these premium bags are engineered to work perfectly with 1.1 to 3.5 grams of fresh cured flower, eliminating guesswork and maximizing your returns. This kit is ideal for smaller presses like the popular NugSmasher Mini, ensuring you get the most out of your material.
This comprehensive kit provides four different micron sizes, giving you the versatility to handle any starting material. By using the recommended Bottle-Tech Style (BTS) packing method, these bags ensure you apply the perfect pressure for a consistent, efficient extraction. Whether you're just starting out or refining your technique, this kit provides all the essential rosin press bags you need. For larger quantities, consider the 7 Gram or 14 Gram kits.
What's Included
Features
Complete Micron Kit
Includes 37, 90, 120, and 160 micron bags to perfectly match your material's needs.
Precision Sized
Specifically designed for pressing 1.1g to 3.5g of flower for consistent results.
Optimized for BTS
Engineered for Bottle-Tech Style packing to ensure ideal pressure and yield.
Made in the USA
Hand-made with premium, food-grade nylon for durability and purity.
Micron Sizing Guide

As the micron number decreases, the mesh gets finer. This affects the diameter and surface area of the pressed puck. We recommend starting with 160 microns for fresh flower and moving to a smaller micron size, like 90, as the flower becomes drier. For material weighing 1 gram or less, a bag may not be necessary.
Specifications
| Specification | Value |
|---|---|
| Capacity Range | 1.1g - 3.5g |
| Bag Diameter | 1.5" - 1.6" |
| Micron Sizes Included | 37, 90, 120, 160 |
| Quantity | 48 Bags Total (Four 12-Packs) |
| Material | Premium Food-Grade Nylon Mesh |
| Origin | Made in USA |
FAQs
The micron number refers to the size of the holes in the mesh. A lower number means smaller holes. 160µ is great for fresh, sticky flower to allow maximum flow, while 90µ or 37µ is better for drier material or kief to prevent contaminants from passing through, resulting in a purer final product.
A good rule of thumb is to start with a larger micron size (120µ-160µ) for fresher, more moist material and a smaller size (37µ-90µ) for older, drier material. Experimenting is key to finding what works best for your specific flower. For a complete overview, check out our NugSmasher Rosin Press Guide.
These bags are perfect for any press with plates around 2.5" x 2.5" or larger. They are the standard size for the NugSmasher Mini and also work well with the NugSmasher XP and Touch models for smaller, personal-sized presses.
While not required, using a pre-press mold like the NugSmasher 3.5g Pre-Press Mold can improve your yields. It helps compact your material into a dense puck, which prevents blowouts and ensures even pressure distribution during extraction.
NugSmasher rosin bags are designed for single use to guarantee the highest quality and purity in your final product. Reusing bags can introduce contaminants from previous presses and may lead to blowouts due to weakened seams.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.