01
Negative
Control grew, processed did not
The test organism was not detected for this cycle. That is a negative result, and it does not by itself prove every item in the load was sterile.
ClearStack Apps
14-DAY TRIAL Get SteriProof
DENTAL, VETERINARY AND MEDSPA
SteriProof
Autoclave Logbook
The read time is fixed when the test starts.
SteriProof keeps the sterilization records for a practice running more than one autoclave: cycle logs, biological indicator results and machine tests. Start an indicator and the result field stays shut until the device clock reaches the read time for the period you chose. It all exports as one PDF.
14-day trial you start yourself, no card.
$2.99/mo · $19.99/yr · $49.99 once.
The latch
A result cannot be written before its read time
A paper logbook cannot stop anyone filling in Friday's spore test on Thursday afternoon. Starting a test here stores two instants: when the indicator went into the incubator, and the read time that follows from the incubation period you chose. Until the device clock reaches the second one, the result field is shut and the card says so.
Set the period from the indicator's own instructions for use. SteriProof offers 1, 3, 10, 24 and 48 hours because indicators differ; it does not decide which one your product is cleared for.
A notification arrives when the test can be read, and the wait survives closing the app or restarting the phone.
Control and processed
The control is what makes the test mean anything
Two vials from the same lot, recorded separately. The processed one went through the chamber. The control did not, and it has to grow: it is what shows the spores were viable and the incubation was right. Three outcomes, in the app's own words.
02
Positive
Control grew, processed grew
It needs investigating: take the chamber out of use, review this cycle’s readings and chemical indicator, repeat the test, and work through the loads run since the last negative result.
03
Void
The control did not grow
The test is void whatever the processed vial did, because the control is what shows the spores were viable and the incubation was right. Usual causes are incubator temperature, an expired or mishandled indicator, or an activation that did not take.
Per load
The preset fills the fields. Your machine decides the numbers.
Picking a cycle fills the temperature, pressure and hold time, so the only thing left to type is what actually happened. They are starting points, not authority: exposure depends on the sterilizer, the cycle it is validated for, the packaging and the load. Check them against your machine's documented cycle, and use Custom for anything they do not cover.
| Cycle | Temperature | Pressure | Hold | For |
|---|---|---|---|---|
| Unwrapped instruments | 134 C | 2.1 bar g | 3 min | Solid, non-lumened, for immediate use |
| Wrapped pouches | 121 C | 1.1 bar g | 30 min | Gravity displacement, pouched instruments |
| Wrapped, vacuum | 134 C | 2.1 bar g | 4 min | Pre-vacuum pouched or bagged loads |
| Hollow and porous | 134 C | 2.1 bar g | 4 min | Handpieces, lumens, textile packs |
| Extended hold | 134 C | 2.1 bar g | 18 min | Where local policy sets a longer hold |
| Custom | yours | yours | yours | Enter the parameters from the printout |
Pressure is gauge
At 134 C saturated steam is about 3.04 bar absolute and 2.04 bar gauge. A figure with no datum is ambiguous, so the fields, the record and the PDF column all say gauge, and psi is recorded as psig.
Class N is offered less
A chamber set to Class N is offered the unwrapped and custom rows only. A preset it cannot run is not a preset.
Under target is a flag, not a verdict
If an entered value comes in under the target for the cycle you selected, the record is flagged for review. It compares your numbers with the numbers you picked. It does not decide whether a load can be released.
Load review
Which loads were in the window
When an indicator shows a positive result, the question is which loads to look at. SteriProof lists every load run on that chamber since its previous negative result, with the date, the cycle and the contents.
If the chamber has no earlier negative result, the window is open ended and every load on it is listed. That is the honest answer rather than a shorter one.
The machine, not the load
Eight record types for the sterilizer itself
Which of these apply depends on the sterilizer and the regime you work to. A Bowie-Dick test is an air-removal check for a pre-vacuum chamber rather than a sterilization test, and a written scheme of examination is a UK pressure-systems duty. Record the ones that apply to your machines.
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Bowie-Dick test
Air removal in a pre-vacuum chamber. Not a sterilization test.
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Helix test
Steam penetration into a hollow load, where the regime calls for it.
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Vacuum leak test
Air leak into the chamber during the vacuum phase.
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Automatic control test
The cycle checked against the machine’s own printout.
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Door gasket change
Dated, with who did it.
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Filter change
Dated, with who did it.
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Engineer service
The visit and the certificate that came with it.
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Pressure vessel examination
A UK pressure-systems duty, under a written scheme.
A failed machine test marks that chamber on the dashboard until a passing test is recorded, so a sterilizer that failed its leak test this morning is not quietly still in the rota this afternoon.
Cadence
Pick the schedule you work to
US CDC dental guidance, UK HTM 01-05 primary care dental, or veterinary use. The choice sets the cadence the app expects and whether daily steam penetration testing is prompted at all.
On the phone
The screens as they ship
What you get
The shape of it
- Records are on the device. No account and no internet connection is needed to log a cycle.
- Built for more than one sterilizer. The dashboard carries every chamber you run, side by side, rather than repeating a single-machine screen.
- A subscription ending does not close your records. Everything already recorded stays readable and editable. The caps apply to new entries.
- Biological indicator records are never capped. They are available on every tier, including the standard one.
- One PDF. Load ledger with cycle parameters, biological indicator log with both vial readings, machine test and servicing log, your practice details and your signature.
- Ten languages. English, Spanish, French, German, Portuguese, Hindi, Arabic, Japanese, Korean and Simplified Chinese. Arabic lays out right to left.
Price
Two tiers, and a trial you start yourself
Standard tier
Included
- One sterilizer
- Twenty load records
- Biological and machine tests, uncapped
- A banner ad
Pro
$2.99/mo
or $19.99/yr, or $49.99 once
- Unlimited sterilizers
- Unlimited load records
- The PDF export
- Removes ads
The 14-day trial is a button in the app, not something the install switches on for you. No card and no account.
Questions
What it does and does not claim
Can I enter a spore result before the incubation has finished?
No. The result field stays shut until the device clock reaches the read time for the incubation period you chose when you started the test. The app is offline, so it measures against the phone’s clock: it stops a result being written ahead of time in the ordinary course of a day, not somebody who changes the date on their phone.
Does a negative result mean the load was sterile?
No. It means the test organism was not detected under the conditions of that test. A negative biological indicator does not prove every item in a load was sterile, and SteriProof does not say that it does.
What if the control vial did not grow?
The test is recorded as void rather than as negative or positive. The control is what shows the spores were viable and the incubation was right, so without it the processed vial proves nothing either way.
Where do the cycle presets come from?
They fill the fields so you only type what actually happened. They are starting points, not authority: exposure depends on the sterilizer, the cycle it is validated for, the packaging and the load. Check them against your machine’s documented cycle, and use Custom for anything they do not cover.
Is the recorded pressure gauge or absolute?
Gauge. At 134 C saturated steam is about 3.04 bar absolute and 2.04 bar gauge, so a figure with no datum is ambiguous. The fields, the record and the PDF column all say gauge, and psi is recorded as psig.
How many autoclaves can I track?
The standard tier covers one sterilizer and twenty load records. Pro removes both caps and adds the PDF export. Biological indicator records are never capped on any tier.
What happens to my records if I stop paying?
Everything already recorded stays readable and editable. A subscription ending applies the caps to new entries, it does not close what exists.
Is this a medical device?
No. SteriProof is a record-keeping and audit-assistance tool. It does not diagnose, treat, cure or prevent any medical condition, and it does not substitute for accredited laboratory testing or a statutory inspection.
SteriProof is a professional record-keeping and audit-assistance tool. It reduces compliance overhead and organises sterilization data. It does not substitute for certified biological laboratory testing, for your manufacturer’s validation schedule, or for a statutory health authority inspection. SteriProof is not a medical device and does not diagnose, treat, cure or prevent any medical condition.
Start the log at the next cycle
Add your sterilizers, pick the schedule you work to, and the first load is on the record before the door has cooled.