PSI Quick Reference Charts

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The above calculators assume that you are using Nugsmasher® Extraction Bags and loading them B.T.S.
the calculators are intended to help extractors get consistent results with different size/weight extractions

Our Nugsmasher® extraction bags are recommended for optimal yield and clean quality rosin/concentrates. Nugsmasher® extraction bags are specifically designed to work with the weight of fresh cured flower together with our extraction machines and are labeled accordingly at: 3.5g Bag (1.1g-3.5g) loaded material weight , 7g Bag (3.6g-7g) loaded material weight and 14g (7.1g-14g) loaded material weight. This assumes the bags are loaded (BTS) or bottle/barrel-tech style (upright so that you end up with the round coin like puck once fully pressed). This perfected method allows you the ability to put the proper weight of flower into the bag and get a consistent extraction every time. This method also allows for the proper pounds per square inch of pressure on your actual material (MPSI) according to the bag size and machine you are using and eliminates the guess work. (MPSI=Material pounds per square inch).

3.5g bag (1.1g-3.5g) = 1.5″-1.6”Diameter
7g bag (3.6g-7g) = 2″-2.2”Diameter
14g bag (7.1g-14g) = 2.4″-2.7″Diameter

As the micron gets smaller the Diameter get larger, this is the reason for the variance in the diameter numbers above. We prefer to use 160 micron for fresh flower, as flower drys we go down in micron screen size (for dry flower use 90 micron). Micron size determines the diameter (surface area) of the smashed bag. For nugs .7-1.5g and smaller, no bag is necessary. Apply pressure at(.7-1 grams of flower=3.5 bts, 1.25-1.5 grams of flower=7bts) less is always better when it come to pressure.

For more details about loading Bottle-Tech and/or Barrel-Tech style (BTS) Visit Nugsmasher® on YouTube