The Ultimate Rosin Pressing Resource

Can You Wash Trim Leaves for Bubble Hash?

As the cannabis concentrates market continues to place increasing value on solventless extracts like bubble hash and rosin, it’s not uncommon for growers to commit entire harvests to bubble hash production. All the flowers from the plant are used as starting material for Ice Water Extraction. Full melt bubble hash, the highest grade of hash that’s rated as 6-star, is a fantastic product to dab and normally doesn’t stray too far away from the circles of extractors who produce it. 3-4 star bubble hash
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Does Cannabis Help Prevent COVID?

A recent study suggests that certain molecules produced by the cannabis plant can prevent COVID-19 infection. Collectively referred to as cannabinoids, these molecules trigger a variety of responses in the body through interaction with our Endocannabinoid System, a network of receptors that runs from head to toe. Cannabinoids block COVID virus entry into cells according to a study published this week by researchers affiliated with Oregon State University. The acid forms of CBD and CBG, which are called CBDA and CBGA, bind to the spike proteins of SARS-CoV-2, the virus that causes Covid-19.
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How To Dry Bubble Hash

Drying is an essential phase in the creation of high quality bubble hash. Bubble hash is made through a process called ice water extraction, in which extractors mix cannabis and ice water together causing trichomes to fall away from the cannabis material. Extractors then filter these trichomes through a series of screens known as bubble wash bags, in order to separate the full trichome heads from the starting material. The main determination of the quality of bubble hash is the overall quality of the cannabis starting material.
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What is Homogenization in Solventless Extracts?

Homogenization means combining different consistencies into one uniform consistency. In terms of cannabis concentrates, homogenization is creating a substance of the same texture throughout, as opposed to solid forms and liquid forms that exist together. For example, hash rosin often separates into solid crystalline structures surrounded by pools of liquid terpenes. Different methods can be used to combine these two distinct components of rosin into one uniform consistency.
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What Is Auto Flowering Cannabis?

Autoflowering cannabis is a form of cannabis that produces flowers based on the age of the plant rather than the amount of sunlight and darkness that the plant receives daily. While regular cannabis produces flowers only in response to a specific photocycle, autoflowering cannabis flowers in almost any amount of light. This offers advantages to growers. Cannabis cultivars have been traditionally recognized as either sativa, indica, or ruderalis. Sativas are native to tropical and equatorial regions of the earth, where climate is conducive to longer flowering periods. Indicas are native to mountainous regions like the Hindu Kush mountains where the flowering periods are shorter.
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Work Cube vs. No Work Cube for Washing Bubble Hash

A work cube is a type of work bag used for washing bubble hash. Work bags are made with 220 micron nylon filters and hold the cannabis material while it's mixed with ice water. Although work bags are traditionally in the same open bucket-like shape as the other wash bags in the set, work cubes are made with 90 degree edges and are closable with a zipper around the top. Work cubes are also constructed using only 220 micron mesh, so the entire container acts as a filter allowing trichomes to pass through, while the bulk of the cannabis material remains inside.
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The Endocannabinoid System and Cannabis

Humans have been using cannabis for thousands of years. The history of human experience has included cannabis for health and wellness and recreation. It’s been a love affair that’s not going away, and for good reason. In some ways, it seems that humans and the cannabis plant were made for each other. The active compounds in cannabis called cannabinoids fit like a hand in glove with a system of receptors in our bodies known as the Endocannabinoid System. So what exactly are cannabinoids? Cannabinoids are the naturally occurring compounds
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Top 5 Mistakes To Avoid When Dry Sifting

Dry sift, or sift for short, is a type of solventless cannabis concentrate that’s similar to bubble hash in quality and appearance. While bubble hash is made with water and a series of filter bags, dry sift is extracted without water. Dry sifting involves sieving cannabis flowers or trim leaves with a series of mesh screens. As the cannabis material is agitated over the top screen, trichomes fall away and get caught on the screens beneath. Various sizes of screens collect various grades of dry sift, with the highest grades being composed almost entirely of trichomes.
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Top 5 Rosin Pressing Plate Tips

A rosin press is the primary piece of equipment that extractors use to make rosin. There are multiple types of presses, but every press incorporates a set of rosin pressing plates which apply heat and pressure onto the cannabis starting material. The pressing plates can be installed onto a regular hydraulic shop press which provides the necessary pressure for extraction, and temperature is set through a digital heat controller. Heating rods are inserted into the center of the plates which heat the aluminum to the temperatures needed for pressing rosin.
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What's the Optimal Moisture Content for Pressing Flower Rosin?

The moisture content of cannabis flowers is an important factor to consider when sourcing the best starting material for pressing flower rosin. Either too much moisture or too little moisture will negatively impact the extraction. Using flowers with just the right moisture level is key to maximize both yield and overall quality. Relative humidity is a good indicator of the amount of moisture in flowers. How can we measure the relative humidity of cannabis flowers? The best way to measure relative humidity
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Benefits of Pressing Rosin at High Temp

Temperature is one of the key variables for extractors to control while pressing rosin. The type of starting material determines the best temperature to target, but there’s a range of temperatures that can deliver good results. Aiming for the higher end of that range is considered pressing rosin at higher temps, and it offers some advantages over pressing rosin at lower temperatures. Before we look at the benefits to pressing rosin at higher temperatures, let’s review the suggested temperature ranges for each type of starting material.
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Benefits of Pressing Rosin at Low Temp

Rosin is created through the application of heat and pressure onto starting material over the course of several minutes. These variables of time, temp, and pressure can be adjusted depending on the type of cannabis material pressed and the specific strain or cultivar of that material. Differences in these inputs also impact both yield and quality of rosin. A range of temperatures are suitable for pressing rosin. Pressing at the low end of the temperature range will yield different results than pressing at the higher end.
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How To Cold Cure Rosin

Cold curing is a type of post-production treatment that you can apply to your freshly-made rosin. It’s a simple process that doesn’t require much input or equipment to execute, the main ingredients being a few days and some patience. Although the name itself implies the need for cold temperatures, relatively speaking even normal room temperatures will do the trick. With a sealable glass jar, dab tool, and cool ambient temperatures, you can easily set up an environment for your rosin to benefit from a cold cure.
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How To Smoke Bubble Hash

Bubble hash is one of the most spectacular forms of cannabis and possibly the most coveted type of solventless extract. Bubble hash can be used to make edibles, pressed into rosin, or consumed by itself. It’s rare to find true 6-star bubble hash in dispensaries, because the best of the best doesn’t normally stray too far from the extractors who are skilled enough to produce it! While a 1 or 2-star hash is great for edibles, and a 3 or 4-star hash is good for pressing rosin, the premium product is normally smoked in its unmodified form.
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What Is Full Spectrum Bubble Hash and Why Does it Matter?

Full spectrum refers to the array of cannabinoids, terpenes, and flavonoids present in a cannabis extract. Solventless methods like ice water extraction, which is used to make bubble hash, and pressing rosin capture all of the active ingredients within the cannabis resin. What you get is the full experience of the plant, the full spectrum of what it has to offer. More broadly, full spectrum can refer to cannabis products that contain all the therapeutic compounds produced by the source plant.
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How To Use a Freeze Dryer To Dry and Cure Cannabis Flowers

In the past few years, using freeze dryers to dry bubble hash has become commonplace for commercial extractors and even in-home hobbyists. Freeze drying hash not only speeds up the drying process, it also ensures a consistent and thorough removal of moisture, preventing mold growth and preserving terpenes. Freeze dryers may currently be associated mostly with bubble hash, but the technology can also be applied to drying and curing cannabis flowers. So what is freeze drying? Freeze drying involves removing water moisture through sublimation
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Difference between Pillow Tech, Bottle Tech, and Chottle Tech

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.
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What's The Problem with Using Dry Ice for Dry Sifting?

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”.
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