Dry sift is a traditional solventless concentrate made by sieving dried cannabis through screens to collect the resin glands, often called kief. The quality of dry sift is closely tied to how cleanly those resin glands are separated from the plant material, which is where grades and micron sizes come in. Understanding these concepts helps explain why some dry sift is far purer and more prized than others. This article explains dry sift grading and micron screens. Because concentrates are potent, this is general information, and the usual reminder applies: start small and expect effects to vary.
What Dry Sift Is
Dry sift, sometimes called dry sieve or kief, is a solventless concentrate produced by gently agitating dried cannabis over fine mesh screens. The screens allow the small resin glands, the trichomes, to fall through while holding back larger plant material. The collected resin powder is dry sift. Because it relies purely on mechanical separation, it is a fully solventless method with a long traditional history and can be done at a hobbyist scale.
The appeal of dry sift lies in its simplicity and its ability to concentrate the resin without solvents. The cleaner the separation, the purer the resulting product. This is why the process often involves multiple screens of different fineness and why grading matters so much. High-quality dry sift can be a beautiful, sandy, resin-rich material, while lower grades contain more plant contamination.
How Micron Sizes Work
A micron is a tiny unit of measurement, and in dry sift it refers to the size of the openings in the mesh screens. Screens are rated by their micron size, which determines what can pass through. Larger micron openings let through bigger particles, including more plant material, while finer screens allow only smaller particles, helping isolate the resin glands more selectively.
By using a series of screens with different micron sizes, producers can separate the material into fractions. Coarser screens filter out larger debris, while finer screens capture cleaner resin. The trichome heads that hold most of the cannabinoids and terpenes fall within a certain size range, so choosing appropriate screen sizes is central to collecting clean dry sift. The specific micron ratings used vary by setup and preference, and there is no single universal number.
Understanding Dry Sift Grades
Dry sift is often graded by purity, reflecting how free it is of plant contamination. The highest grades consist almost entirely of clean, intact resin glands, appearing as a fine, pale, sandy powder that can melt cleanly when heated. Lower grades contain more plant material, appear greener and less refined, and are generally considered less pure. The grading reflects the proportion of pure resin versus contamination.
This grading is closely linked to the sieving process and micron sizes used. Careful sieving through appropriate screens, sometimes with multiple passes, helps achieve higher purity. The very cleanest dry sift, sometimes called full-melt grade by enthusiasts, is highly prized because it is so refined. Lower grades still have value but are less pure. Grading is largely a matter of visual assessment and how cleanly the material behaves when heated.
Why Grades and Microns Matter
For consumers and makers alike, understanding grades and micron sizes helps explain quality differences in dry sift. Higher-grade, cleaner dry sift offers a purer experience with less plant material, while lower grades are coarser and less refined. This affects everything from appearance and flavor to how the material behaves when used. It also explains why some dry sift is more sought after and valued.
Practically, the takeaway is that careful sieving through appropriate screens produces cleaner resin, and the result can be judged by appearance and purity. As a solventless product, dry sift can be appreciated for its traditional, chemical-free nature. Whatever the grade, it is a concentrate, so it is more potent than flower. Start with a small amount, since effects vary by person, and treat this as general information.
Frequently Asked Questions
What does micron size mean in dry sift? Micron size refers to the size of the openings in the sieving screens. Finer screens, with smaller micron openings, allow only smaller particles through, helping isolate clean resin glands from larger plant material.
What makes dry sift high grade? High-grade dry sift is very pure, consisting mostly of clean resin glands with little plant contamination. It appears as a fine, pale, sandy powder and melts cleanly when heated, unlike greener, less refined lower grades.
Is dry sift solventless? Yes. Dry sift is made purely by sieving dried cannabis through screens to collect resin, with no chemical solvents involved. It is a traditional solventless method that can be done at a small scale.