Semi-Closed BHO Extractor With Chamber 100g – Premium Stainless Steel · Safe Cannabis Resin Extraction

The 100g Semi-Closed Extractor with Chamber is the ultimate professional-grade tool for crafting pure, golden BHO concentrates right at home, giving you absolute control over your solvent flow and temperature to maximize yield and purity.

Still running open blasting tubes and hoping for the best? Let's be real, traditional open extraction is a messy, unpredictable hassle. You pack your material, blast the gas, and cross your fingers hoping the solvent doesn't just blow right through without pulling the good stuff, leaving you with a subpar yield and a lot of wasted potential.

There is nothing more frustrating than blowing through cans of premium butane only to end up with a dark, soupy mess or a tiny return. You waste time, you waste expensive gas, and worst of all, you waste your top-shelf buds because you can't control the soaking time or keep the temperatures low enough to prevent pulling unwanted chlorophyll and plant waxes.

Enter the semi-closed system. By locking down the process with precision safety valves and a double-jacketed cooling chamber, this extractor lets you soak your material, drop the temps with dry ice, and pull massive, dispensary-grade yields of shatter, wax, or budder without the stress.

Setting up your 100g Semi-Closed Extractor

Getting ready for a blast requires a bit of prep, but it's the secret sauce to golden slabs. You need to dial in your workspace—always outdoors, zero sparks, and plenty of ventilation. Pack your tube tight but not choked, and get your cooling agents ready to drop those temperatures to the floor.

• Freeze your material for at least 24 hours before packing to lock in those trichomes and keep chlorophyll at bay.
• Grind your herb slightly, but avoid turning it into dust to prevent clogging the stainless steel fine filter.
• Fill the double jacket chamber with dry ice or a heavy ice-salt mix to ensure maximum coldness.
• Double-check that both safety hand valves are completely shut before attaching your gas.

Precision and control during the blast

This is where the magic happens and where the semi-closed design flexes its muscles. As you inject the refined butane, you aren't just blowing it through; you are soaking the material. By closing the bottom valve, you let the solvent bathe the trichomes, dissolving every last drop of resin.

Keep an eye on the pressure and the frost building up on the outside. The double jacket keeps the core freezing, which means the gas stays liquid longer, pulling only the purest cannabinoids and terpenes. When you finally crack that bottom valve, watching that thick, golden river flow into your collection dish is pure satisfaction.

Yields, purging, and maintenance after the run

Once the run is done and the gas has evaporated, you are left with a rich pool of high-quality resin ready for the vacuum pump. The difference in yield and color compared to open blasting is night and day. You will notice a much lighter, cleaner product that snaps perfectly once fully purged.

Cleanup is a breeze. The 304 and 316 medical-grade stainless steel wipes down easily with some isopropyl alcohol. Just disassemble the removable legs and valves, give it a good soak, and it is ready for the next session. Store your finished gold in premium dab containers to preserve those volatile terpenes.

Short- and long-term advantages of this extraction system

• Double jacket cooling chamber: Allows you to pack it with dry ice, which means you extract at sub-zero temperatures for a lighter, shatter-quality product free of plant waxes.
• Dual safety hand valves: Gives you total control over the solvent flow, allowing you to soak the material longer, which translates to a massive increase in your overall yield.
• 100g capacity: Lets you process up to 100 grams of dried herb or 185 grams of fresh frozen in a single run, saving you hours of repetitive work.
• Medical-grade stainless steel build: Ensures the unit won't degrade or leach contaminants, giving you peace of mind and a lifetime of safe, clean extractions.
• Semi-closed efficiency: Uses less gas to extract more resin compared to open tubes, keeping more money in your pocket over the long haul.

Frequently Asked Questions

Is a semi-closed extractor safer than an open blasting tube?

Yes, because it gives you control over the pressure and flow of the gas via the safety valves. However, you are still working with highly flammable solvents, so you must always extract outdoors, far from any ignition sources.

How much butane do I need for a 100g run?

A general rule of thumb for BHO extraction is using about 300-400ml of high-quality, refined butane per 30 grams of material. For a full 100g packed tube, expect to use around 3 to 4 premium cans, depending on your soaking technique.

Can I use fresh frozen material in this extractor?

Absolutely. The 100g chamber can hold up to 185 grams of green, fresh frozen material. Combined with the dry ice jacket, it is the perfect setup for making top-tier live resin.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve run countless tubes over the years, and making the jump to a semi-closed system was a game-changer for my personal stash. Before using this 100g beast, I was constantly fighting temperature issues during summer runs. Now, I pack the outer jacket with a slurry of dry ice and alcohol. It gets ridiculously cold. I pack about 90g of premium trim, inject the gas, and let it soak for a good 3 to 4 minutes before opening the bottom valve. The yield increase is insane—easily 20% more than my old glass tubes, and the color is always a translucent gold. My biggest tip? Don't rush the purge. Get a good vacuum oven, keep it at 29°C (85°F), and let it flip for 48 hours. The shatter you'll pull from this extractor will rival anything you can buy at a dispensary.