We prefer to use 160 micron for fresh flower over 65% humidity, as flower drys we go down in micron screen size (for dry flower use 90 micron), 120 micron is good middle range. Micron size determines the diameter (surface area) of the smashed bag. For nugs 1g and smaller no bag is necessary.

Nugsmasher extraction bags, these bags are recommended for optimal yield and clean quality rosin. Our bags are hand-made in the USA! 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(1.1g-3.5g), 7g (3.6g-7g) and 14g (7.1g-14g). 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 (PSI) on your product and eliminates the guess work.
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 1g and smaller no bag is necessary.