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Rosineer 2" x 4" Pre-Press Rectangular Mold



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Rosin pressing tips

Rosineer Pre-Press Rectangular Mold is designed to help you compact loose herbs / flowers into a neat wafer / puck so that you can press more material in less time.  Using the pre-press mold improves efficiency and yield and reduces filter bag blowouts. This mold consists of three parts made of food-grade anodized aluminum. The base and the hollow chamber are held together by magnets to prevent accidental opening of the mold.  

Puck dimensions
40 x 100 mm
Press dimensions when assembled, L x H x W
120 x 40 x 60 mm
Anodized aluminum, food - grade
Rosin pressing tips

What is rosin and how it is produced?

Rosin is a concentrated extract of cannabis plant which is produced by applying heat and pressure to the plant parts (usually flowers or hash and kief) to squeeze out a translucent, sappy substance.

What do I need to start making rosin?
You need a rosin press, a parchment paper sheet, a collection tool, and your precursor. Additional items that you may want to use when pressing rosin are filter bags, pre-press molds, non-stick mats, etc.

How do I make rosin?

Prepare your plant material. Make sure it is kept at the optimal 62% humidity.

Place the plant in a folded parchment paper sheet.

Turn on your press machine and set your desired temperature and timer.

When the press plates reach the right temperature, place the parchment paper with your plant material on the bottom plate and operate the machine according.

When done, remove the parchment paper, get rid of the pressed plant parts, and gather rosin using your collection tool.

What are the recommended press settings?
For Cold Pressing: 160°F - 190°F, for 1 to 5 minutes or longer. Cold pressing produces terpene-rich rosin but with a sacrifice in yield.
For Hot Pressing: 190°F - 225°F, for 40 seconds to 3 minutes. The hotter you press, the higher yield you’ll get, but the high temperature causes a drop in rosin quality.
Flowers can be pressed at 190°F - 225°F for 30 - 180 seconds.
Refined precursors such as hash, kief, dry sift are usually pressed at 165°F - 195°F for 60 - 130 seconds.

What filter bags should I use?
We carry three mesh sizes: 25, 100, and 160 microns. 25 micron bags are best used with fine grain materials such as kief, bubble hash, and dry sift. 100 micron bags give the best filtration and highest quality output for flower rosin, but you may see some reduction in yield. 160 micron filters are usually the optimal type of bags for flowers; they result in good yield and quality rosin. For detailed info on filter bags, please see FAQ on How To Select Rosin Filter Bags


Customer Reviews

Based on 4 reviews
james c.

Worked as described

nicolas t.
Rosineer 2" x 4" Pre-Press Rectangular mold

As i only used it once that time it worked out fine.

Jason Harper
Great Quality

This prepress is very nicely made from good quality Aluminum. I'm the type who always writes down and keeps track of all my presses and yields, so that I know what strains are worth me keeping. And because I do this, all of my past presses were without the prepress, now that I have one and have used it. Well I will be dammed, it actually increased my yields..

Nice prepress mold

Like this little helper!

Questions & Answers

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  • Is this 2” x 4” pre press mold the recommended size to use with the 2” x 3” Presso?

    For PRESSO, Rosineer 1.5"x1.5" square or cylinder pre press molds are good.

Rosineer 2" x 4" Pre-Press Rectangular Mold

Rosineer 2" x 4" Pre-Press Rectangular Mold