![]() ![]() Bud makes an additional caution to those pressing hash or kief: go slow. Attempting to process any quicker than one ounce per bag risks breakage. For our 9-by-2.5-inch bags, an ounce of flower is a good guideline. Most blowouts occur when the technician overfills the bag. Can you reuse them? Yes, but they’ll be a little less accurate and a little more prone to blowouts. The pores of the bag have stretched and widened, particularly along the edges where the screen size most counts, and they’ll be partly plugged with plant residue-even if you clean them well. Some folks may clean their bags with ethanol and give them another go, but remember that they’ve been stressed under 20,000 pounds of pressure. Professional pressers like Budsmith frown on the reuse of bags. Metal screens mar the surface of the platens when under high pressure. Silk is prone to blowouts because it doesn’t flex like nylon (AKA polyester). Nylon is the best material for rosin bags. Consumers, however, typically want clarity and don’t want to see chunky stuff in their retail products. There’s truly no wrong way to consume this plant! If you’re pressing a small amount, or if you just want to save a couple of bucks on a bag, processing flower in the buff may be the way to go. Flower rosin pressed without a screen is one step in the direction of traditional smoking and one step away from the candy-sweet experience of dabbing. You’re gonna get a lot of the essential oils from the plant and the little bits, the orange hairs,” says Bud. “Sometimes, I don’t use a screen when I’m just pressing off some flower for myself to smoke. But what about pressing rosin with no bag at all? Even though the trichromes melt, this is still an obvious choice for the upper size limit on rosin bags. This is because trichrome heads themselves-the most cannabinoid-rich part of the plant-are 120 microns in diameter or a little smaller. But in the rosin industry, screens looser than 120-micron are seldom seen. These sizes are all great for flower, depending on the product you’re creating. Not everyone is as quality-focused as Bud, so some prefer a 90-micron, 115-micron, or 120-micron bag for mass production. “I exclusively press on a 36 whether it’s flower or bubble hash.” Fortunately, the Triminator’s rosin bags are food grade and boil-resistant, so feel free to be creative and get that last 3% out of there! Tincture? Christmas cookies? If you’re averaging 20% yields from a given strain using a 90, and you drop down to using a 36, you might drop down to a 17% yield,” says Bud. Bud Smith (totally his God-given, family name) explains that tightening your screen size will indeed cut your yield a little bit, but the quality tradeoff makes it worth it. I’ve used a 25, and I felt like it was holding back a little too much of what I was trying to get out.” So does the rosin screen size affect yield? “If I’m going for quality, I go with a 36-micron,” says Bud Smith, owner of Budsmith and winner of the Mecca Cup for best rosin. For ultra-quality flower rosin, try a 72-micron bag. So if you’re pressing flower, you’ll probably want to use a larger micron screen like a 90, or 115. Since flower rosin has to extrude through all the nooks and crannies of the bud-and because there can be other, larger particulate in there too-it has a little more work to do to get through the screen. A 72-micron bag is an acceptable choice for kief and bubble hash too. A finer screen helps keep dusty particulate in the bag too. Since the material flows easier, we recommend a finer, 36-micron screen for bubble hash/kief if you’re looking for super-quality product. When you press flower testing at 20% THC, most of the material isn’t going to flow, whereas with a bubble hash measuring 70% THC, it’s all going to melt pretty easily. Kief and bubble hash press differently than flower, and their qualities change how rosin flows through the mesh of the bag. The first thing to consider when choosing a rosin screen size is the material you’ll be pressing. What screen size should you use for kief? What micron for flower? And, (bonus!) Budsmith, an award-winning rosin producer from Humboldt County, stops by to drop some knowledge too. In this guide, we explain why screen size is important and how to select the rosin bag micron size that will work best for you. Rosin press screen size beguiles newcomers, but it doesn’t have to. Choosing a rosin press bag is simple… or is it? ![]()
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