When it comes to solventless cannabis extractions, both dry sift and bubble hash are highly valued techniques, but they require completely different conditions and setups to ensure optimal results.
In this post, we’ll break down the ideal room conditions for each method, highlight the main differences, and share which equipment can help you improve your yields and streamline the process.
Whether you’re setting up a new extraction room or optimizing an existing one, understanding these differences can make or break your results.
What’s the difference between Dry Sift and Bubble Hash?
Dry sift is a mechanical extraction process that uses screens to separate trichomes from plant material by friction and vibration. No water or solvents are used, just cold temperatures and precision sieving.
Bubble hash, on the other hand, uses ice water to freeze and break the trichomes off the plant, which are then filtered through micron bags. It’s a more hydrated, colder, and water-intensive process.
Dry Sift: Room setup and operation
Dry sift requires extremely controlled environments to prevent contamination and maximize resin separation.
Recommended room conditions:
– Humidity: Around 40%, never exceeding 50%.
– Temperature: Ideally 15ºC or lower (some strains work best at 8ºC). Never exceed 17ºC.
– Ventilation: EPA filters recommended. If using CO₂, proper ventilation is essential.
– Room size: Compact spaces are easier to control.
– Extra tips: Use no-frost freezers to avoid internal moisture. Water inlets and drains are also recommended, especially for cleaning.
The colder the room, the better the yield, but remember: lower temps increase humidity, so powerful dehumidifiers are key.
Recommended equipment for Dry Sift
At Master Products, you can perform dry sift extractions using our equipment by simply swapping the barrel:
– Dry Sift pollen barrels:
✅ Changeable micron screens
✅ Made of 100% stainless steel
✅ Individual mesh replacement
✅ Hexagonal drum = more efficient and aggressive rotation
You can watch the dry sieving demonstration video.
You can also combine the trimmer with a CO₂ extraction setup for enhanced results.
Bubble Hash (Ice Water Extraction): Room Setup and operation
Bubble hash requires a colder and wetter environment, but it still needs proper control to avoid mold and ensure water quality.
Recommended operating conditions:
– Humidity: Naturally higher, but must be kept under control.
– Temperature: Ideal at 5ºC ± 2ºC. Lower is better.
– Water: EC level under 0.2. Clean, filtered water is essential.
– Cooling: Use external water tanks with chillers to keep water at max 5ºC.
– Rinsing: Hose-compatible spray guns are recommended for cleaning mesh bags.
– Freeze drying: Essential for preserving terpene profiles and product quality.
Always install drains and water inlets for efficient water management.
Recommended equipment for Bubble Hash
Our MX ICE series is designed for high-efficiency ice water extractions. Each batch starts by loading fresh frozen material into the drum, where a motorized system agitates it gently with ice-cold water.
The temperature-controlled water ensures trichome heads break off cleanly without damaging the plant material. These resin glands are then filtered through a set of micron mesh bags, separating different grades of hash.
The tank has been designed for optimal water flow, ease of drainage, and ergonomic cleaning. When used in combination with a chiller, the water temperature remains stable at around 5ºC, enhancing the purity of the extract and preserving terpenes. The result is a clean, potent, and aromatic bubble hash, ready for freeze-drying.
Our machines are built for scalability, handle small artisanal batches or ramp up for larger productions without compromising quality.
You can see the ice extraction process.
For cleaning your setup, we recommend our SONIC ultrasonic cleaning machine, ideal for deep-cleaning all parts of your lab or extraction equipment.
Additional recommendations
– Use a no-frost freezer to store frozen material without adding moisture.
– Install equipment in rooms just big enough to operate efficiently—smaller spaces are easier to control.
– We also offer commissioning and on-site training to help you get the most out of your setup.
And remember: we always have spare parts available and ready to ship.
Need help setting up your extraction room?
Whether you’re focused on dry sift or bubble hash, our technical team can support you with:
✅ Equipment selection
✅ Room setup consultation
✅ On-site training & maintenance
Contact us today to optimize your extraction workflow
Frequently asked questions & pro tips
Can I use the same room for both dry sift and bubble hash?
We don’t recommend it. These methods require opposite environmental conditions—dry sift needs a low-humidity, cool environment, while bubble hash involves water and much higher humidity. Separate rooms ensure better control and product quality.
How important is water quality for ice water extractions?
Very. Always use clean, filtered water with EC < 0.2 to avoid contamination and preserve trichome integrity.
How do I clean my equipment efficiently?
Using an ultrasonic cleaner like SONIC saves time and ensures deep cleaning. Install it in a clean room to extend the lifespan of your gear and reduce downtime.
Pro Tip: Invest in humidity and temperature sensors for each room. Real-time data allows you to act quickly and avoid compromising your extractions.
Pro Tip: Don’t overload your machines. Sticking to the recommended capacities ensures better resin separation and product consistency.
