How Much Material Will Fit in a Rosin Bag
Which dimension rosin bag you choose is based on how much material you plan to press and what size the plates on your rosin press are. You don’t want to overstuff the bags as this could cause a blowout. Under-stuffed bags means you are paying for more bag than you need and you could save money by going down a size or two. The rosin bag dimensions should not exceed that of the plates on the rosin press you are using. This will cause uneven pressure to be applied and result in an almost certain blowout. Let’s talk about the specifics.
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How to Pack a Rosin Bag
To pack a rosin bag, first prepare the starting material. For hash and finer material, it is suggested that you break it down into a finer powder. For flower, do not grind it. Rather, break the buds into larger pieces and remove the stems.
Take the starting material and form it into a brick shape, trying to avoid any air pockets. Place the brick along the bottom seam of the rosin bag, again trying to avoid air pockets. Leave a half inch of room at the top of the bag so you can fold it over. You can cut off any excess bag.
Cannabis flower packed in a Gutenberg’s Dank Pressing Co. Rosin Bag 
Hash packed in a Gutenberg’s Dank Pressing Co. Rosin Bag
2×4 inch Rosin Bags
2×4 inch rosin bags should be used on rosin press plates 2.5×4.5 inch or larger. They can fit about 7g of cannabis flower or 24 grams of finer material.
3×6 inch Rosin Bags
3×6 inch rosin bags should be used on rosin press plates 3.5×6.5 inch or larger. They can fit about 14g of cannabis flower or 56 grams of finer material.
4×7 inch Rosin Bags
4×7 inch rosin bags should be used on rosin press plates 4.5×7.5 inch or larger. They can fit about 24g of cannabis flower or 85 grams of finer material.
2.5×4 inch Rosin Bags
2.5×4 inch rosin bags should be used on rosin press plates 3×4.5 inch or larger. They can fit about 9 grams of cannabis flower or 30 grams of finer material.
2.5×4.5 inch Rosin Bags
2×4 inch rosin bags should be used on rosin press plates 3×5 inch or larger. They can fit about 10 grams of cannabis flower or 35 grams of finer material.
1.5×4 inch Rosin Bags
1.5×4.5 inch rosin bags should be used on rosin press plates 2×5 inch or larger. They can fit about 6 grams of cannabis flower or 18 grams of finer material.
