The Ultimate Rosin Pressing Resource

In the art of rosin extraction, there are several different methods that extractors can use to accomplish the same goal. For example, all rosin extraction involves pressing cannabis material between heated plates, but there are a variety of ways to pack the starting material into filter bags and position it between the plates. These different approaches are referred to as techniques, or “tech” for short. Pillow Tech, Bottle Tech, and Chottle Tech are different ways that rosin filter bags can be used to hold starting material, and how that material is oriented between rosin plates for extraction.

Dry ice is the solid form of carbon dioxide, capable of achieving temperatures much lower than that of regular ice. Unlike water ice that changes from a solid to a liquid when it melts, dry ice sublimates as it warms up, meaning it changes from a solid directly into a gas vapor. This vapor cools the surrounding environment, which makes dry ice an effective cooling agent. At more than 100 degrees below zero, dry ice gets so cold that it can actually damage unprotected skin. One of the mantras often heard when working with solventless cannabis extracts like bubble hash and dry sift is “keep tools and environment cold”.

Preheating cannabis starting material is an important prerequisite for extracting rosin. Whether you’re pressing flower, dry sift, or bubble hash, warming the material between heated rosin plates helps prepare the cannabis for extraction. Although pressing material without preheating will still give you results, you can achieve a more efficient extraction and better yields with a quick preheat before full pressure is applied. Benefits of Preheating Preheating cannabis prepares the trichomes

A wine cooler, or wine chiller, is an appliance designed to generate and maintain the ideal environment for storing bottles of wine. It turns out that these specialized refrigerators are also useful for hash makers to dry bubble hash. But how is a wine fridge different from regular refrigerators, and what makes them useful for drying bubble hash? Many wine coolers look like mini refrigerators with a glass door, but they are built with features that differ from traditional refrigerators.

A common question for people just getting into rosin is what type of rosin press they should buy. A hair straightener is some extractors’ first foray into solventless extraction, but the limited capabilities of this makeshift approach soon grows old (especially given the easy availability of better alternatives). Although a hair straightener can definitely produce quality rosin, a press that utilizes heated plates designed specifically for rosin production that can generate several tons of pressure is both easier to operate and more efficient for processing cannabis material.

Ice water extraction is the ideal method used to create high quality bubble hash. While other methods like dry sifting can produce excellent solventless concentrates, ice water offers extractors greater control over isolating trichomes and removing plant contaminants. But after extraction is complete a lot of water still remains, leaving a totally saturated patty of cannabis trichomes. Not only is the hash unusable in this state, but it’s vulnerable to microbial growth like mold. Just like fruits and other foods, bubble hash can invite microbial growth if there’s sufficient moisture present.

Rosin filter bags offer many advantages to solventless extractors. They keep cannabis material tight and compacted for a consistent flow of rosin, facilitate even pressure from the heated plates onto the material throughout extraction, and help remove unwanted lipids and plant particles from rosin. Rosin filter bags are a staple of the solventless extraction toolkit. But can you press rosin without filter bags? The answer depends on what type of cannabis material you’re pressing.

Know why good cannabis looks like it’s covered in a sugar-like coating of tiny crystals? That lovely layer of sparkling goodness is actually thousands of little appendages that hold the magic of the cannabis plant. These resin-producing glands are called trichomes, and they contain the cannabinoids, terpenes, and flavonoids in highly concentrated amounts. Growers think about cultivating cannabis in terms of flower production, but another way to think about it is through the lens of farming terpenes. At the end of the day, it’s the trichomes we’re after.

The definitions of indoor and outdoor cannabis cultivation are self-explanatory: indoor growing takes place within an enclosed structure utilizing artificial light, whereas outdoor growing takes place outside using the sun as the primary source of light. Cannabis can be successfully grown in either type of environment. Both indoor and outdoor flowers are capable of reaching incredibly high qualities of flavor and potency. However, there are factors unique to each approach, and pros and cons that come with either type of garden you choose to establish.

We know that cold temperatures are a necessity for producing high quality bubble hash with the ice water extraction method. Cold temperatures make trichomes on the cannabis material brittle enough to fall away from their stalks, while also minimizing terpene loss and helping to keep resin contained within the trichomes. But do we have to actually freeze cannabis material before beginning the process of washing hash? First, let’s look at the different preparations possible for cannabis material used for washing bubble hash.

There’s much more to aging bubble hash than simply the passage of time. Without proper preparations and a controlled environment, hash is just getting older in long term storage, not really aging like a fine wine, tobacco, or cheese. There isn’t yet much scientific research that gives us a clear understanding of the chemistry behind the magic of aging bubble hash, but we still have data. That data comes from human experience, passed down through the traditions developed over thousands of years in hash producing regions of the world.

For thousands of years hash producers have been extracting resin-filled trichomes from cannabis flowers, creating a pure and potent concentrate that captures the most desirable qualities of the plant. The first hash was collected directly by hand from mature flowers, creating a smear of resin by rubbing open palms across the plants. The hash was then peeled away and rolled into balls, called charas.

Trimming cannabis involves snipping away excess leaves that grow out of the buds, exposing the swollen calyxes and dense flower structure underneath. Trimming always happens after harvest, but it can take place before or after the flowers have been dried. Wet trimming takes place right after the flowers are harvested, before they’re hung to dry. Dry trimming takes place after the plants have already been hung to dry, before they go into jars for curing.

Autumn is here, and outdoor growers are looking ahead to that magical time of year when nearly a year’s worth of hard work will finally pay off. Flowers are maturing, leaves are turning, and trichomes are swelling with medicine-rich resin that’s nearing peak ripeness. October is called Croptober for good reason, as the crop and chop is top of mind! Whether you have 3 plants or 300, planning and preparations are in order to ensure your cannabis makes it across the finish line in top condition. Part of that is determining when exactly the plants are ready for the harvest.

Compact washing machines like the kind sold for cleaning mini loads of laundry make the perfect mixers for ice water hash extraction. Their 5-gallon capacity is just the right size for mixing together several ounces of cannabis material and ice water, and their portability and simplicity of use makes them one of the most popular appliances to easily repurpose for bubble hash production. With a few ounces of good cannabis, clean water, ice, a washing machine, and a set of quality bubble wash bags

After months of careful cultivation, harvest time is finally here! You've grown some lovely ladies to full maturity, now it's time to reap the rewards of a beautiful bounty. But just like growing the plants, harvesting them requires careful planning and attention to detail. A haphazard process or impatience in letting the plants dry can ruin months of hard work. Proper harvesting techniques not only maintain the levels of quality your flowers achieved, they actually enhance them.

One of the things we love most about our work in the solventless community is sharing the tips and tricks we’ve picked up over the years in working with the cannabis plant. Solventless extraction requires knowledge of cannabis, its trichomes, and the techniques and best practices required to isolate, collect, and process them. The resulting concentrates, when made with care and intention, capture the essence of the cannabis plant better than anything else available.

Drying, curing, storing, and aging are distinct phases of preparation and preservation for cannabis. All the care and skill required to grow premium cannabis is only meaningful when the best qualities of the living plant can be maintained and even enhanced after harvest. What happens to cannabis after it’s harvested, and how the resulting solventless concentrates are cured and stored, have a significant impact on the quality that the consumer will enjoy.