The first question is usually whether the oil is live resin or live rosin. That classification helps frame the first conversation, but hardware approval still depends on the material’s actual filling behavior and the device revision being evaluated.
Two batches sold under the same extract name can arrive at the filling station in different physical states. They may have different handling histories, formulation choices, target fill quantities, or behavior as they cool after dispensing. An AIO selected from the category name alone is therefore being asked to solve a problem that has not yet been described.
Open the comparison with a formulation record, a current hardware drawing, and a controlled sample plan. Approval should name the formulation, process, hardware revision, and operating profile that were actually evaluated.
Start with the formulation record, not the oil label
Open a new record for the exact batch that will be used in the hardware screen. At minimum, give it a formulation or batch identifier and record the information that the hardware and filling teams can actually verify.
That record may include:
- the extract and formulation description used by the brand;
- the condition in which the material arrives for filling;
- storage and handling history relevant to the trial;
- any additions or processing steps already completed;
- intended fill mass or volume;
- the temperature and time conditions the brand permits during handling;
- observations at the defined filling condition, including whether dispensing is stable and repeatable;
- visible separation, crystallization, suspended material, or other phase change at the defined storage and handling conditions;
- the test lot retained for comparing candidate devices.
Do not fill a blank field with a category stereotype. If viscosity has not been measured by a defined method, write down the observable processing problem instead: the material does not dispense consistently at the current condition, cools in the needle, traps bubbles, or moves into the intake faster than expected after closure. Those observations are not substitutes for rheology, but they are more useful than an invented universal viscosity range.
The same discipline applies to temperature. Studies of cannabis resin and terpene stability show temperature- and time-dependent changes under their specific test conditions (Jaidee et al., 2022; Raeber et al., 2025). Neither study supplies a universal filling temperature for commercial live resin or live rosin. The formulation owner still has to define and control the process window used for the trial.
Turn oil behavior into hardware questions
Once the formulation record exists, translate it into questions for the AIO drawing and specification.
Oil delivery
Ask for the number, dimensions, position, and shape of the controlled intake features. Trace the route from the reservoir to the heating zone and identify any wicking or porous material in that path. Record whether the design depends on a particular storage or operating orientation and which surfaces can be inspected after conditioning.
Treat “large inlet” as a prompt for dimensions, not as the specification itself. Count, geometry, path material, heater interface, and the condition of the formulation all matter. Aperture diameter helps decide which samples deserve a filled test and which missing information must accompany them.
Heating assembly
Record the heater construction, nominal resistance and tolerance, available power or voltage settings, delivered-power behavior if documented, activation logic, preheat behavior, ramp or soft-start profile, and the control method described by the device engineering team. Ceramic and Postless are useful descriptors, but neither word defines the complete thermal system.
If the device manufacturer recommends a setting, ask whether the recommendation belongs to the exact model and revision, which formulation was used, and what result was measured. A product-page phrase such as “lower voltage for live rosin” may guide the first sample setup. Validation still belongs to the named formulation, device revision, process, and measured result.
Reservoir, vapor route, and closure
Confirm capacity, the approved fill range, vapor-route location, mouthpiece installation method, closure target, and maximum permitted time between filling and closing. Mark the surfaces that move into or compress around the reservoir during closure.
The separate Postless-versus-center-post architecture guide owns the full comparison of open-center and center-post reservoir geometry. Here, architecture remains one input to the formulation match.
A voltage setting is not a measured heater temperature
It is tempting to arrange devices from “cool” to “hot” using the voltage printed on their product pages. That shortcut ignores resistance, heater geometry and material, control logic, airflow, saturation, puff duration, and changes during the draw.
An experimental thermography study of specific cannabis-extract vaporizer systems found that voltage alone was a poor indicator of coil temperature, and the tested voltage-controlled systems showed greater temperature variability than the tested temperature-controlled system. The devices and numerical results in that study do not describe an ILEVA model. The transferable lesson is narrower: do not convert a nominal voltage into an assumed heater temperature without model-level measurement or validation. (Oar et al., PLOS ONE, 2022)
For a sample record, capture the selected device setting, nominal resistance, activation mode, preheat use, puff definition, and observed result. If heater temperature is a controlled requirement, use an appropriate validated method rather than calculating confidence from voltage alone.
Control the fill-and-close sequence
A good hardware candidate can produce a poor trial when the fill and close sequence is uncontrolled. Write the process fields before opening the samples.
Write down:
- material identifier and actual material temperature at dispensing;
- equipment, syringe or filling-machine identifier;
- needle gauge, tip, depth, angle, and fixture datum;
- dispense setting and actual fill mass;
- start time, exposure time, and time from fill to closure;
- mouthpiece or closure method and target;
- visible condition of the seal area before closure;
- operator, hardware lot, and drawing revision.
The aim is repeatability. Replace directions such as “heat until it flows” with recorded material temperature, exposure time, dispense behavior, and the brand’s permitted handling window. If a candidate requires a different fixture or closure setting, document the difference. Equivalent acceptance criteria are more useful than forcing mechanically different devices through an identical setup.
Use public specifications to sharpen the sample request
The current ILEVA Live Resin/Rosin collection includes multiple architectures and control options. Four listings show how public facts can expose the next engineering question without turning the Blog into a duplicate product catalog.
| Public listing | Useful starting fact | Question to carry into the sample request |
|---|---|---|
| XP04-B | Postless architecture with selectable settings and listed preheat | Which intake, heater-control, and closure specifications apply to the requested revision? |
| XF02-S1 | Full ceramic center post with a published intake configuration | How do the intake dimensions, heater interface, and approved fill range relate to the test formulation? |
| XP02 | Postless architecture with selectable settings and listed preheat | What distinguishes its heater geometry, ramp behavior, and fill process from the other Postless candidate? |
| SPLBOX | Postless format with a different published setting range and activation workflow | What closure instructions, fill-to-close window, and model-specific validation records are available? |
The XF02-S1 page publishes an intake configuration that the other reviewed pages do not all provide. Keep the missing fields marked unknown and request model-level drawings; a dimension from another device or a competitor guide cannot fill that gap.
This matrix helps a team choose what to request. Matching labels or settings still leave heater geometry, firmware, thermal response, intake behavior, vapor routing, and finished-unit performance to be verified.
Run a formulation-to-hardware sample screen
Use one homogeneous test batch and assign traceable sample IDs. Before filling, record the device model, lot, revision, empty mass, visible condition, closure components, and the specification fields already confirmed.
After filling and closing under the recorded process, condition the units at the predetermined times, temperatures, and orientations in the brand’s protocol. At every checkpoint, use the same definitions for:
- device mass;
- visible separation, crystallization, suspended material, or change near the intake;
- visible oil movement toward the intake, vapor path, mouthpiece, or lower housing;
- bubbles or changes near the controlled intake area;
- activation and draw observations;
- output observations under the defined draw sequence;
- condition of the reservoir and remaining mass after the sequence.
Do not set sample count or pass/fail numbers from a Blog article. Those belong to the brand’s risk assessment and controlled qualification protocol. The Blog can still make the screen better by specifying what has to remain constant and what has to be recorded.
When candidates have different electrical limits or closure systems, use the approved condition for each model and compare them against the same program-level acceptance definitions. “Same setting” and “fair comparison” are not always the same thing.
Record the approved combination
Broad conclusions such as “Postless works for rosin” or “2.0V works for live resin” lose the conditions that made a trial meaningful. Preserve them in a controlled statement closer to this:
Formulation batch family A, filled and closed under process B, met the program’s recorded criteria in hardware model and revision C at operating profile D.
That statement also tells the team when to reopen the decision. A material formulation change, new hardware revision, different intake or heater, adjusted firmware, new closure component, changed fill process, or different operating profile should trigger a documented review at the level appropriate to the change.
The discipline prevents a successful sample from becoming an indefinite guarantee for products that were never tested together.
Questions to send with the sample request
Send the vendor engineering contact the formulation constraints that can be shared, then request answers tied to the exact model and revision:
- What are the controlled intake dimensions and their position relative to the heater?
- What heater construction, resistance tolerance, delivered-power behavior, ramp/soft-start profile, settings, activation logic, and preheat behavior apply to this revision?
- What fill range, needle constraints, closure target, and maximum fill-to-close interval are recommended?
- Which drawing and component revisions will the sample lot and production order use?
- Which compatibility or performance claims have model-specific test records, and what formulation, method, sample count, conditions, and limits were used?
- Which changes require the qualification team to repeat part of the process?
Keep every unanswered question visible in the shortlist. The team can then decide whether a controlled test can resolve it or whether the candidate should wait for supplier data.
Final decision
A category label is a useful search filter. The decision record should end with the exact formulation, process, hardware revision, and operating profile that survived the screen—and the changes that would reopen it.
Once those requirements are recorded, compare the current ILEVA Live Resin/Rosin AIO collection and request the exact drawings and sample revisions needed for the shortlist.
