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Filters for Botanical Extraction

Filtration is an important step in production of high quality cannabis extracts. Typical extraction methods often have carryover of undesirable lipids, plant matter, and debris from cultivation, and filtration is often the key to high-quality final product.  Sterlitech suggests a three-step vacuum filtration process with increasingly fine separation. Vacuum filtration systems require a vacuum pump, filter holder (i.e. glass funnel), filters, collection flask, and appropriate rubber stoppers and tubing. Filter holder selection is based on the desired filtration level, from rudimentary Buchner funnels to precise glass microanalysis holders.

Coarse cellulose filter papers are a great choice for rough filtration or pre-filtration, and following up with medium cellulose filter papers will eliminate large particles from solution. Our cellulose are free of ash and bleach, for safe and effective filtration. A porcelain Buchner funnel setup is suitable for this level of filtration.

For finer filtration use of a polyethersulfone (PES) membrane filter will remove bacteria and microparticulates to yield a highly refined extract. The PES filters have absolute-rated pore sizes at either 0.2 or 0.45 microns, so you can be confident that nothing larger than the selected pore size will pass through to your end product. At this level, glass filter holders will provide the best support for the membrane and are suggested over Buchner funnels.

See our full range of kits for Botanical Extraction

Sterlitech Offers More Cellulose Filter Papers

 
SKUProduct Name Filter Material Diameter (cm) Est Ship Price
1520005 Botanical Extraction Coarse Cellulose Filter Paper, 11.0cm, 100/Pk Coarse 11 1-2 days
$19.72
1520006 Botanical Extraction Coarse Cellulose Filter Paper, 12.5cm, 100/Pk Coarse 12.5 5-7 days
$22.92
1520007 Botanical Extraction Coarse Cellulose Filter Paper, 15.0cm, 100/Pk Coarse 15 1-2 days
$32.01
1520008 Botanical Extraction Coarse Cellulose Filter Paper, 18.5cm, 100/Pk Coarse 18.5 1-2 days
$43.75
1520009 Botanical Extraction Coarse Cellulose Filter Paper, 24.0cm, 100/Pk Coarse 24 1-2 days
$64.86
1520010 Botanical Extraction Medium Cellulose Filter Paper, 11.0cm, 100/Pk Medium 11 1-2 days
$14.39
1520011 Botanical Extraction Medium Cellulose Filter Paper, 12.5cm, 100/Pk Medium 12.5 1-2 days
$15.83
1520012 Botanical Extraction Medium Cellulose Filter Paper, 15.0cm, 100/Pk Medium 15 1-2 days
$21.29
1520013 Botanical Extraction Medium Cellulose Filter Paper, 18.5cm, 100/Pk Medium 18.5 1-2 days
$23.13
1520014 Botanical Extraction Medium Cellulose Filter Paper, 24.0cm, 100/Pk Medium 24 1-2 days
$48.02
1520015 Botanical Extraction Slow Cellulose Filter Paper, 12.5cm, 100/Pk Slow 12.5 1-2 days
$25.49
1520016 Botanical Extraction Slow Cellulose Filter Paper, 15.0cm, 100/Pk Slow 15 1-2 days
$32.01
1520017 Botanical Extraction Slow Cellulose Filter Paper, 18.5cm, 100/Pk Slow 18.5 1-2 days
$43.75
1520018 Botanical Extraction Slow Cellulose Filter Paper, 24.0cm, 100/Pk Slow 24 1-2 days
$65.90
1520023 Botanical Extraction Slow Cellulose Filter Paper, 11.0cm, 100/Pk Slow 11 1-2 days
$21.90
1520024 Botanical Extraction Slow Cellulose Filter Paper, 9.0cm, 100/Pk Slow 9 1-2 days
$11.93
1520025 Botanical Extraction Coarse Cellulose Filter Paper, 14.2cm, 100/Pk Coarse 14.2 1-2 days
$27.56
1520026 Botanical Extraction Medium Cellulose Filter Paper, 14.2cm, 100/Pk Medium 14.2 1-2 days
$18.33
1520027 Botanical Extraction Slow Cellulose Filter Paper, 14.2cm, 100/Pk Slow 14.2 1-2 days
$29.05
1520029 Botanical Extraction Fine Membrane Filter, PES, 0.45 Micron, 15.0cm, 20/Pk Fine 15 1-2 days
$145.30
1520046 Botanical Extraction Coarse Cellulose Filter Paper, 45.7cm, 100/Pk Coarse 45.7 5-7 days
$240.77
1520048 Botanical Extraction Fast Cellulose Filter Paper, 35.0cm, 100/Pk Fast 35 1-2 days
$68.05
1520049 Botanical Extraction Fast Cellulose Filter Paper, 24.0cm, 100/Pk Fast 24 1-2 days
$60.31
1520050 Botanical Extraction Slow Cellulose Filter Paper, 35.0cm, 100/Pk Slow 35 1-2 days
$106.23
2050003 Botanical Extraction Filter Pack, Includes 90mm Coarse, Medium, and Fine Filters Assortment 9 1-2 days
$101.35
2050012 Botanical Extraction Coarse Cellulose Filter Paper, 9.0cm, 100/Pk Coarse 9 5-7 days
$16.59
2050013 Botanical Extraction Medium Cellulose Filter Paper, 9.0cm, 100/Pk Medium 9 1-2 days
$9.14
2050014 Botanical Extraction Fine PES Membrane Filter, 9.0cm, 25/Pk Fine 9 1-2 days
$83.87
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Applications

Example Applications:

  • Cold-filtration to remove lipids or waxes
  • Clarification or plant debris removal
  • Bacterial removal (using 0.2 or 0.45 micron PES filters)
  • Ethanol washing

Specifications

Cellulose Filter Paper Specifications

Designation Fast Coarse Medium Slow
Retention 20-26 micron 19-26 micron 6 micron 1.5-3.5 micron

Documentation