Keep in mind that when you’re pressing nugs to make rosin, you’re squeezing the plant matter. Under imperfect conditions, that plant matter can make its way into your final product, but that doesn’t mean your product is bad. Rosin is commonly judged by a 6-star rating system used to judge all solventless concentrates.
Any plant particulates or impurities will reduce the amount of bubbling, which correlates to the star rating: 1-2 being the lowest and 6 being the highest — and the most difficult to produce. While it’s true that the higher the star, the better the dab, a little plant material in your rosin isn’t going to be a deal breaker. Practice makes perfect, and the more you get your set up and filtering processes down, the higher quality rosin you’ll be able to produce. Professional rosin manufacturers and at-home enthusiasts may opt to purchase press kits that contain hydraulic presses, heat controllers, and more in order to process larger quantities of rosin and have better control over all the parameters involved. Rosin press prices range from $300 to more than $4,000, with an array of accessories to customize your set up. Whether you’re interested in trying your hand at rosin with a hair straightener or looking to invest in a more high-tech setup, pressing rosin is a tinkerer’s playground, with a plethora of temperature and pressure options to yield the heady results you seek. The information contained in this site is provided for informational purposes only, and should not be construed as medical or legal advice. We’ve done a lot of trial and error when pressing flower rosin.
Based on our extensive experimentation, here are some of the most important things you should know to get the most out of pressing buds! This sounds like a no-brainer but time and time again we talk to customers who are pressing flower and are getting average results. Almost always it’s because they are squishing average flowers, which is perfectly fine, but if you want stellar results, you need stellar material. This doesn’t mean that you have to go purchase “Platinum” shelf buds at your local dispensary or fill your entire garden just with Gorilla Glue #4, but with rosin, your results are mostly predetermined in the garden if your press is up to par. Quality is also closely related to freshness, and you will often see your very best results when pressing flowers as soon after they are dried and cured as possible. The longer you wait, the darker it will be, so make sure to squish buds when they’re as fresh as possible. Similarly, we have not noticed perceptible differences between the flower rosin pressed from hydro, soil, coco, etc grown flowers - the grow media plays a factor inasmuch as the skill of the grower is the biggest determination with each particular substrate. That being said, some strains and types of cannabis flowers do tend to yield better than others, namely indicas and hybrids anecdotally do better than wispy sativas. Your heavy hitter, ultra-potent plants are usually going to be big yielders as the resin production is elevated with genetics such as The White, Gorilla Glue, Ghost Train Haze, and many more. When it comes down to it, the biggest determination for yield, flavor, and quality is all based on how well the material was grown and how strong its genetics were in the first place. Another major factor that we determined after many flower rosin presses is that the humidity and moisture content of your buds will make a massive difference for your flower rosin yields. The reason for this is that if your cannabis is very dry, it will act like a sponge when the trichomes are liquefied, thus soaking up much of the rosin before it has a chance to escape. When you press your flowers, always make sure the relative humidity content of your material is at least 55% to 62% for optimal results. You can quickly and easily check the moisture content of your flower by using either an analog hygrometer, such as the kind found in many cigar boxes, or what we suggest is making the $25 investment in a digital Caliber IV hygrometer. They work much more quickly and are far more accurate, making a digital hygrometer worth every penny for your rosin pressing process. To increase the humidity levels of your buds, you can pick up pre-set humidity packs from Integra or Boveda; both companies sell packs that get your material to a perfect 55% or 62% moisture level. For more about moisture, check out on our video where we go in-depth on our testing on our YouTube channel here . 3: Choose a Temperature Based On Your Desired Results. Temperature is perhaps the most debated variable in the rosin pressing equation today, with fierce proponents on both sides of the spectrum (hotter vs. When you apply heat and pressure to your flower, the speed and consistency in which the trichomes liquefy depends greatly on what temperature is being used, as well as the evenness of that heat distribution. Generally, there are two accepted ranges within which to press virtually any type of rosin. Cold Pressing: 160 °F - 190 °F, pressed for between 1 and 5 minutes or longer, which often produces a budder or batter consistency. Rich terpene preservation, but sometimes with a sacrifice in yield.
Hot Pressing: 190°F - 220°F, pressed for between :45 seconds and 3 minutes, which frequently produces a very oily or shatter-like consistency. High terpene preservation if pressed at 220°F or below, often accompanying an increase in yield over cold pressing. In our opinion, we have found the most success around the 210 °F - 220°F range which offers a great compromise between quality and yield. If terpene preservation and quality is your #1 goal, you should probably start colder and evaluate your results, however we have observed very little terpene loss in that range. Above 235°F however there can be noticeable losses in flavor and terpenes, but we have customers who swear by pressing at as high as 250°F. Try and see what works best for you, if you find something great, tell us in the comments section! First and foremost, you can absolutely press flower rosin without a bag if you want, but you are liable to get little bits and pieces of plant material in your rosin on the other end. If you are pressing a rosin filter bag however, getting the right micron screen size is essential in order to strike a great yield-to-quality ratio.
The rule of thumb we stick by is that you should never press flower rosin in anything less than 90 micron width. Below that, you can compromise your yield without getting noticeable gains in quality. Similarly, anything above 150 micron width tends to not filter that well, so reductions in quality may be realized. The relationship between micron type and material type is very important, because the higher the micron count, the more porous the mesh filter is.