Skip to main content

Search

Extraction Washing Machines


Every full-melt hash run starts with the wash — and the wash machine determines everything that follows. Trimleaf carries extraction washing machines across the full production spectrum, from the plug-and-play Bubble Magic 5 Gallon Starter Kit for personal-scale runs, to the high-throughput Triminator The Maker built for commercial facilities demanding 150 lbs per hour. Whether the goal is a first batch of single-strain fresh frozen or running a licensed extraction lab at scale, this selection covers every step from entry-level automation to full industrial output — all solventless, all ice water, all built for repeatable quality.

Free Shipping on Most Items
We Price Match
Easy Returns

Buyer's Guide

Extraction Washing Machines: Complete Guide

Choose the Right Wash Machine for Your Output — Not Just Your Budget

Extraction washing machines are not one-size-fits-all equipment. Capacity, construction material, agitation method, and cycle control all determine whether a machine produces full-melt quality or destroys the trichome heads it's supposed to preserve. Matching the machine to both current batch size and realistic growth projections prevents the most common and costly mistake in solventless production: buying underpowered equipment and outgrowing it within a single harvest season.

From Entry-Level Automation to Commercial Throughput

The washing machines on Trimleaf span four distinct tiers — each built around a different production reality. Understanding where each tier performs helps operators choose equipment that earns back its cost through yield consistency rather than sitting idle or bottlenecking production.

  • Personal and small-batch automation (Bubble Magic): The Bubble Magic 5 Gallon and 20 Gallon washing machines automate the agitation cycle with built-in mixing and drainage — eliminating manual stirring and producing consistent runs in 15-minute cycles. The 5 Gallon Starter Kit and 20 Gallon Starter Kit bundle the machine with an 8-bag micron filtration set, providing a complete start-to-collection setup.
  • Precision small-batch and R&D (Access Rosin Sieve Tanks): The Access Rosin Spin Flow 13 Gallon and 45 Gallon Sieve Tanks use vibration-assisted agitation with full-drain basket designs for controlled trichome separation — the format of choice for R&D runs and single-cultivar quality testing where repeatability matters more than throughput.
  • Professional and licensed production (Boldtbags Stainless): The Boldtbags stainless steel washing barrels — available as standalone vessels or as the Starter, Pro, and Commercial packages — are built from FDA-grade 304 stainless steel with 1-inch thick insulation that cuts ice consumption by 50%. These vessels meet GMP and FDA compliance standards required by licensed facilities, and their three-port workflow design integrates cleanly into multi-vessel production setups.
  • Industrial-scale automated production (Triminator The Maker & Lowtemp Osprey): The Triminator The Maker processes up to 150 lbs per hour using a no-shear impeller system that handles wet or dry material without mechanical trichome degradation, configurable at 20 or 60-gallon volumes. The Lowtemp Mini Osprey 2.0 brings the same low-shear FloTex™ impeller technology to a 30-gallon, 110V-compatible format for professional labs that need full-melt quality without the footprint or power demands of full commercial systems. For full commercial-scale output, the Lowtemp Osprey 75 Gallon scales that same ecosystem to facility-level throughput. Operators new to the Lowtemp ecosystem can also start with the Mini Lab Starter Bundle — a complete entry-level wash-to-press setup built on the same modular platform.

Building a Complete Wash Operation Around Your Machine

A washing machine is the centerpiece — but yield quality and workflow efficiency depend on the supporting equipment around it. Three dependency categories directly impact every wash run.

  • Micron filtration (Input Dependency): Every wash machine requires extraction bags to grade and collect trichomes after agitation. Matching bag gallonage to machine capacity and selecting the right micron range — 220 microns for the work bag down to 25 microns for the finest collection grade — determines how cleanly grades separate and how much contamination reaches the final product. Browse the full range of ice water hash bags to find the right set for any machine size.
  • Collection, grading, and water management (Workflow Dependency): After washing, trichome-rich water passes through the bag stack and the collected grades need further processing. The Lowtemp AutoSieve Collection System and Mini AutoSieve automate the grading step with stainless steel vibrating screens, eliminating manual ladle-and-screen work between washes. The Lowtemp Nest Recirculation Collection Tank closes the water loop between washes at full scale, while the Mini Nest Water Recycle Kit brings the same water recirculation and waste-reduction system to smaller production setups — reducing both ice and water consumption across multi-batch sessions without the footprint of the full Nest.
  • Downstream pressing (Next Step): Washed and dried hash moves directly to a rosin press for final extraction. The Lowtemp Industries rosin press lineup — including the V2 4x7 and the modular Medusa System — is the natural downstream complement to the Lowtemp washing ecosystem, with both product lines designed to work together as a single integrated solventless workflow.

Getting the Most from Every Wash Run

Machine quality sets the ceiling — technique determines how consistently operators reach it. These principles apply regardless of which washing machine sits at the center of the operation.

  • Keep wash water temperature at or below 35°F throughout the run: Trichome head membranes remain rigid at cold temperatures, which means they separate cleanly from plant material rather than smearing and contaminating adjacent micron grades. Insulated vessels like the Boldtbags stainless barrels maintain temperature across longer runs by cutting ice melt — a meaningful advantage for operators doing multiple consecutive washes per session.
  • Pre-freeze and break down fresh-frozen material before loading: Compacted fresh-frozen material that hits the drum as a solid block agitates unevenly and creates dead zones where trichomes never fully separate. Breaking material into loose pieces before loading ensures uniform agitation contact across the full batch from the first cycle minute.
  • Grade collected hash immediately and move it to drying without delay: Trichome-rich water sitting in collection bags at room temperature begins to degrade within minutes of collection. Moving each grade to the drying screen or freeze dryer immediately after washing preserves the terpene profile and prevents the color degradation that signals oxidation. For information on freeze-drying bubble hash properly after the wash, see Can You Dry Bubble Hash in a Freezer? on the Trimleaf blog.

From first wash to commercial facility, the right machine — paired with the right bags, collection system, and downstream press — is what turns fresh-frozen material into consistent, full-melt product batch after batch. For a deep dive into the Triminator The Maker and what it means for commercial hash producers, read Triminator the Maker: Making Bubble Hash Faster, Easier on the Trimleaf blog.

Frequently Asked Questions

What is an extraction washing machine used for?
Extraction washing machines agitate plant material in ice-cold water to mechanically separate trichomes — the resin glands containing cannabinoids and terpenes — from the plant surface. The trichome-rich water is then passed through a series of micron filter bags, which grade the collected trichomes by size. The collected material dries down into bubble hash, which can be consumed directly or pressed into live rosin using a rosin press. The washing machine handles the critical agitation step that determines both yield volume and concentrate quality.
What is the difference between a 5-gallon and 20-gallon washing machine?
The primary difference is batch capacity. A 5-gallon machine like the Bubble Magic 5 Gallon handles smaller personal batches — ideal for hobby producers or operators running single-strain test batches before committing to larger runs. The 20-gallon format handles significantly more material per cycle, making it the better choice for producers running regular harvests who need to process multiple pounds of fresh-frozen material per session. Both run the same 15-minute automated cycle and are compatible with standard micron filter bag sets. If production volume is expected to grow, starting with a 20-gallon machine avoids needing to replace equipment within a season.
What makes the Boldtbags stainless steel barrels different from plastic washing machines?
The Boldtbags stainless steel washing barrels are built from FDA-grade 304 stainless steel rather than polypropylene, which matters for both durability and regulatory compliance. Licensed facilities operating under GMP or FDA standards often require stainless contact surfaces that can be fully sanitized — something plastic washing machines cannot satisfy. The 1-inch insulation built into the Boldtbags vessels also reduces ice consumption by up to 50% compared to uninsulated containers, which meaningfully lowers operating costs across multi-batch sessions. The three-port workflow design additionally integrates into multi-vessel setups without requiring modifications. These features make the Boldtbags barrels the appropriate choice for any operation where compliance documentation or repeated multi-batch production is a daily reality.
What is the Triminator The Maker and who is it built for?
The Triminator The Maker is a fully automated, industrial-capacity bubble hash washing machine designed for licensed commercial facilities with continuous production demands. It processes up to 150 lbs of material per hour using a no-shear impeller that handles both wet fresh-frozen and dry material without mechanically degrading trichome heads. The machine configures at 20 or 60-gallon wash volumes, allows operators to program custom cycle settings, and includes an insulation sleeve that maintains wash water temperature across long production runs. The Maker suits facilities where hash washing is a primary revenue center and where equipment downtime or inconsistent yields directly impact the bottom line.
What is the Lowtemp Mini Osprey 2.0 and how does it compare to the Bubble Magic washers?
The Lowtemp Mini Osprey 2.0 is a 30-gallon hash washing machine that uses Lowtemp's proprietary FloTex™ low-shear impeller — a bottom-mounted agitation mechanism machined from hard-anodized food-grade aluminum — to separate trichomes with minimal mechanical degradation. Unlike the Bubble Magic machines, which use a standard rotating drum to agitate material, the Mini Osprey's impeller design is engineered specifically to maximize trichome separation while protecting head integrity, producing full-melt quality hash comparable to hand washing at production scale. It runs on standard 110V power, making it compatible with most existing facility setups. The Mini Osprey occupies the professional tier between the consumer-grade Bubble Magic washers and the full commercial Osprey 75 Gallon — suited to serious craft producers and smaller licensed facilities where hash quality is the primary performance metric.
What micron filter bags do I need for an extraction washing machine?
A full 8-bag extraction set covers the complete micron spectrum from 220 down to 25 microns. The 220-micron work bag loads with plant material and stays in the drum during agitation to contain biomass while letting trichomes pass through. The remaining bags — typically at 160, 120, 90, 73, 45, and 25 microns — stack concentrically inside the vessel and grade the trichomes by size as the wash water passes through each screen. The finest grades (25–73 microns) collect the highest-quality full-melt trichome heads; coarser grades (90–160 microns) capture larger material suitable for pressing into hash rosin. Bag size must match machine capacity — 5-gallon bags for 5-gallon machines, 20-gallon bags for 20-gallon machines, and so on.
Can I use fresh-frozen and dry material in the same washing machine?
Most extraction washing machines handle both fresh-frozen and dry material, though the results differ significantly. Fresh-frozen material — plant matter flash-frozen immediately after harvest to preserve terpenes and trichome integrity — produces the highest-quality hash with the most complete terpene profile. Dry material yields a product with reduced aromatic complexity but remains suitable for pressing into rosin. When processing dry material, some operators reduce agitation time to minimize plant matter contamination of the finer micron grades. The Triminator The Maker explicitly supports both fresh-frozen and dry material as separate operating modes, allowing facilities to process different material types on the same machine.
What equipment do I need beyond the washing machine to complete a hash production setup?
A complete wash-to-press workflow requires several supporting components alongside the washing machine. Micron filter bags grade and collect trichomes during the wash. A collection and grading system — like the Lowtemp AutoSieve or Mini AutoSieve — automates the separation step after agitation. A water recirculation solution, such as the Lowtemp Nest Recirculation Collection Tank or the compact Mini Nest Water Recycle Kit, reduces ice and water consumption across multi-batch sessions. After collection, washed hash needs to dry fully before pressing — a freeze dryer accelerates this step while preserving terpene integrity better than air drying. Finally, a rosin press converts dried hash into finished live rosin. The Lowtemp Industries rosin press lineup connects naturally with the Lowtemp washing ecosystem, with both designed to work together as an integrated solventless production platform.
Expert Support

Need Help Choosing the Right Equipment?

Our team is here to help. Call us or browse our curated guides.