Pre-pressing flower prior to rosin extraction provides multiple benefits to extractors. Pre-pressing is a simple way to ensure consistency and even rosin flow from material during extraction.
The process of pre-pressing is quite straightforward, usually mold comes in a specially designed rectangular Aluminum molds, rosin bags that are loaded with flower are then put inside a mold and then use your hands to press the molds, alternatively you can use a vice if you have one to press the mold together.
The shape and size of the mold should ideally match the size of the rosin bag you intend to use, for example if you have a 2x4 mold, a 2x4 rosin bag should be used.
WHAT SIZE PRE PRESS MOLD IS SUITABLE FOR MY NEEDS?
Size of the pre-press mold depends on the quantity you intend to press, most customers usually go for the 2x4 mold, but they also have 2.5x2.5, 3x5,4x4,3x9,6x8, 3x5 2inches depth and 6x8 3inches depth.