Thermometer calibration module

Accurate thermometers, proven every thirty days.

A cup of ice water, the number on the dial, and Tracito works out the offset, applies the tolerance and schedules the next check. Every check carries the time and a first name. Every temperature you log rests on a thermometer you can prove is right.

No credit card. Any off-the-shelf Android tablet will do.

Thermometer calibration screen in Tracito: the kitchen's food thermometer checked on September 10, offset within tolerance, next check due October 10
What it is for

One thermometer off, and every temperature log is off

Walk-ins, hot holding, cooling, receiving: it all runs through the same thermometer. If it drifts three degrees, every reading drifts with it, and nobody notices until a burger reads 155 °F when it is really 152.

What the Food Code expects

The FDA Food Code wants food thermometers accurate to ± 2 °F (4-203.11) and calibrated as often as necessary to stay that way (4-502.11). The usual way to prove it is the ice-point method: a cup of crushed ice and water should read 32 °F. Your HACCP plan has to show it was done, and when.

The trouble with the calibration sheet

The calibration sheet is the one everybody forgets. It lives in the HACCP binder, it reminds nobody, and it gets filled in when someone thinks of it, once a quarter or never. Meanwhile a thermometer reading 3 °F high keeps working the line for months.

What Tracito changes

Every thermometer has its own schedule. The task shows up on the day's list when it is due. You type the number you read, the offset and the verdict are worked out, the next check is scheduled. The calibration log writes itself, dated and signed, and exports as a PDF with the rest.

How it works

Set it up once, then check in a minute

The Tracito way: you set the kitchen up at the start, then the crew only validates. A cup of ice water and one number is all we ask of them.

1

Your thermometers, with their schedule

When you set up, you list your thermometers: the instant-read on the line, the one at the cold station, the infrared gun at the back door. Each one gets a check interval, every 30 days by default, and the tolerance allowed, ± 2 °F.

A new thermometer is added in ten seconds; one you retire comes off the list, and its past checks stay in the log. All of it can be changed later from the tablet or from your web account.

Module settings: the location's thermometers listed with their check interval in days and the tolerance allowed in °F
Settings › Calibration: one line per thermometer, its interval, its tolerance.
Check panel: choice of ice water at 32 °F or boiling water at 212 °F, the value read on the thermometer, the offset worked out and the ± 2 °F tolerance
The entry: the bath, the reading, the offset shown at once, then Validate.
2

Check: the bath, the reading, the offset

Martin fills a cup with crushed ice and water, stirs, waits for the needle to settle and types what he reads: 32.5 °F. The tablet knows the reference, 32 °F for ice water, 212 °F for boiling water, works out the offset and compares it with the tolerance. Within tolerance, green; outside, red.

Several thermometers due the same day? Check them one after the other, then a single Validate saves them all, with the first name and the time. The tablet works without Wi-Fi: the check goes out on its own once the network is back.

3

The next check, scheduled ahead

Checked September 10, due October 10: each thermometer's tile shows the last check, its offset, its verdict and the date of the next one. When the day comes, a task appears on the crew's day like a walk-in reading, and turns overdue if it is missed.

An offset outside the tolerance is a non-compliance: the tile stays red, the manager gets a notification on their phone, and the thermometer gets checked again after it is adjusted or replaced. Both readings stay in the log.

Thermometer list: each tile shows the last check, the offset in °F, the pass verdict and the date the next check is due
The list: “checked Sep 10 · offset +0.2 °F · Pass · due Oct 10”.
Calibration log register: date, first name, thermometer, bath used, value read, offset and compliance, with Export PDF and Send by e-mail
The calibration log: every check dated and signed, the offset right next to it.
4

The log writes itself

Every validated check joins the module's register: date, first name, thermometer, bath, value read, offset, compliance. Nothing gets erased: a cancelled check stays visible, crossed out, with who cancelled it and when.

The register exports to PDF or goes out by e-mail, for the period you pick: this month, this quarter, this year. It is the page most often missing from the HACCP binder.

What the manager sees

You know, without asking

  • The day on one screen. The check that is due sits with the day's other tasks, and stays there as overdue until it is done. Nobody has to remember the date.
  • A notification when something drifts. A thermometer outside the tolerance lands on your phone with the offset, the person and the time. You choose the quiet hours.
  • Inspection mode. Hand the tablet to the health inspector: a read-only view, the calibration log right next to the temperature logs, the complete file as a PDF.
  • The summary by e-mail. Every Monday and at the start of each month: what was done, missed and out of range, module by module, calibration included.
  • From your web account. The same registers, the full settings, several locations, a consultant invited in read-only mode.
Inspection mode: read-only view with the period, the non-compliances, lot search and the list of registers, PDF file and Send all registers
Settings and special cases

It fits your kitchen, not the other way around

Tolerance in °F, Food Code defaults

A U.S. location gets ± 2 °F out of the box, with the ice point at 32 °F and the boiling point at 212 °F, and works in Fahrenheit everywhere. You can tighten the tolerance if your HACCP plan asks for it: every check keeps the tolerance that applied that day.

An interval per thermometer

Thirty days by default, but the instant-read that gets used twenty times a shift can be checked every week, and the infrared gun at receiving every quarter. Each thermometer has its own rhythm; the task lands on the right day, and as overdue if it is missed.

After a drop or a trip through the dish pit

No need to wait for the due date: a thermometer can be checked any time, after a drop, a battery change or a reading that looks wrong. The check joins the log and pushes the next due date out by a full interval.

One tablet for the whole crew

No account or password per person: everyone picks their first name when validating, and that first name goes in the register. Several tablets and phones can be used in the same kitchen, each one sees the others' checks.

Your thermometers checked tonight

Create your location, list your thermometers, fill a cup with ice. 30-day free trial, no credit card. Then 29 € a month or 290 € a year per location, all modules included.

paper is over

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