Compared to sunlight, CFL bulbs produce far less light intensity, so multiple bulbs may be needed to provide enough light for healthy plant growth. Locate the plants where they will receive some sunlight daily, if possible. For year-round growing indoors, select plants suitable for low-light conditions. Place “cool white” CFL bulbs in adjustable light fixtures with a reflector that directs the light onto the plant. Standard shop light fixtures work well; you can easily move them to focus light where needed.
Adjust the light so that the bulb is only 2 to 6 inches from the plant, shining directly on the leaves. Use enough bulbs so that light shines over the entire plant. Turn the lights on and off at the same time every day, using a timer for best results. Plants needing high-light conditions require the lights on for 18 hours a day. Low-light plants need eight hours or more if no additional sunlight is available. Adjust the lights as the plants grow, making sure that the plant does not touch the light. Maintain a 2- to 6-inch distance from the light to the plant. Plants that have long stems and small, pale leaves need more light; increase the bulb wattage or add more bulbs.
If leaves burn or turn crispy brown, move the light farther away from the plant. The resulting concentrate when heat and pressure are applied to the cannabis plant. Rosin is a desirable technique because its concentration doesn’t require the use of external solvents. It can also be used to turn lower-grade hash into a concentrate that can be dabbed. Cannabis can be pressed into rosin by a professional with an industrial press, or at home with a hair straightener. “Rosin is a marijuana extract that is free of chemicals and can be inhaled with a regular pipe, dab rig, or vaporizer.” “I prefer my concentrates solvent-free, so I choose rosin.” More About Rosin. Rosin is a solventless extract that uses heat and pressure to force the compounds within the trichome gland out of the cannabis plant, where all of the THCA, other cannabinoids, and terpenes are located. Think of it like squeezing the juice from grapes or oil from olives, with the end result being similar to butane hash oil (BHO) , but without the harmful chemicals. The rosin process serves as an alternative to a closed-loop extraction system, which outside of cannabis production, is used in making essential oils. Closed-loop extraction is time-consuming, requires technical training, a lot of expensive equipment — pumps, a tank, and a specially designed room to perform the extraction — and you won’t have a solventless concentrate until you purge all the residual solvents using a vacuum oven. Even then, there may still be minor amounts leftover in solvent-based extracts . (Warning: Do not try any processes involving chemicals at home; these should be left to a professional.) While rosin will also have a high THCA concentration and should be consumed carefully, the process of making rosin is considered safer than many other concentrates. With the temperature and pressure used during the rosin extraction tending to dictate color and consistency, rosin is available as shatter , wax, badder/batter/budder , rosin coins, and taffy . Although it may have accidentally been made long ago and there is much debate on its origin, rosin was first introduced to the cannabis community through ICMag in 2006 by forum member Compashon. It only gained notoriety in 2015 when Phil “Soilgrown” Salazar, known by @soilgrown_solventless, started making and snapping pictures of it while attempting to make use of some lower-quality hash . A post shared by Soilgrown Solventless (@soilgrown_solventless) on Nov 15, 2015 at 9:52am PST. While pressing the hash to flatten it out, Salazar noticed that resin started spewing out the side, leaving the original hash dry and unusable. Thinking he may have stumbled upon a new technique, he took a piece of hash, put it between parchment paper, and pressed it against a hot dab nail . He began using a hair straightener after experimenting with his wife’s hair curler. She suggested he then use the flat-iron tool, and after running out of hash, began using buds. In the few years since, rosin production has evolved to using screens and an industrial press to make mass quantities and more consistent products. Although it’s a slight misnomer, rosin is known as a solventless technique because it doesn’t use any external solvents to dissolve the trichome. However, natural hydrocarbon terpenes act as a solvent. Thus, the only “solvents” left are the natural hydrocarbon terpenes from the trichome glands. Rosin can turn low-quality hash into a dabbable wax.
It’s also a very quick process compared with other extraction methods. It doesn’t require time in a vacuum oven to purge out residual solvents. It can be made safely at home with minimal investment, allowing home growers to make the most of their trim , typically a byproduct that’s thrown away. A variety of input materials can be used to create rosin. The input material can affect how many plant contaminants are left in the rosin, which can therefore affect the quality of rosin. Rosin from a flower is going to be different from rosin from kief or ice hash, for example. Rosin from buds typically has some contaminants in the form of plant material that makes it through to the final product. They tend to be small pieces, but they can make a big difference to the flavor when dabbing rosin . The plant material will add a layer of burnt flavor to the overall experience. To avoid having too much plant material in your rosin, try using a rosin screen or mesh bag.
Rosin from kief adds an extra step to the preparation but tends to be cleaner, as the trichomes are removed from the buds prior to exposing them to heat and pressure. This extra step ensures that no plant impurities make their way into the final product. Rosin from bubble hash is a great way to make use of lower-quality hash that does not fully melt as a result of plant contaminants. While you would not want to rosin 5-star or 6-star hash, rosin is a simple way to make your non-dabbable one to two-star hash into a flavorful dab.