Automated logging and corrective-action records
By Vimal Bhaya, Founder and Lead Systems Architect · Last reviewed 25 October 2026
This is a continuation of Temperature logs and inspections, an 8-part tutorial. You are on part 8 of 8.
Automated logging takes the readings for you, so the log is complete, through the night, and nobody can make a number up. It cannot decide what to do about a bad reading. That part, the corrective action, is still done by a person and written down.
A good corrective-action record answers four questions: what went wrong and why, whether it is back under control, what stops it happening again, and what happened to the food. Federal HACCP rules ask the same four.
An automated log records the excursion, not the response
Every reading is on the record, including the ones that are out of range. What the readings cannot show is what someone did about them. A door noticed and shut in five minutes looks, in the data, much like one nobody noticed at all.
One restaurant worker made the point in a thread about automatic temperature logging:
"Faking happens often. Sometimes a door's left cracked for a couple hours, the food is still at a good temp, and actions have been taken, but the logs will show a deficiency. Your system doesn't allow for that fudging."
r/KitchenConfidential
It is a fair objection, and the answer is not fudging. It is writing the action down next to the reading, so the record shows both. In TemperatureWise, whoever answers the alert records the corrective action in the app, beside the readings.
A corrective-action record answers four questions
Federal HACCP rules for meat and poultry plants say every corrective action has to make sure of four things: the cause is found and eliminated, the step is back under control, it is kept from happening again, and no unsafe product goes out. Food plants under 21 CFR 117 must document every corrective action too. A kitchen record can follow the same four questions.
Here they are, filled in for one real night in a restaurant reach-in cooler, 24 to 25 July 2025, when the door was left ajar:
| Question | What to write | For this night |
|---|---|---|
| What went wrong, and why? | The reading, when it started and the cause | Above 41°F (5°C) from 7:30 PM. The door was left ajar |
| Is it back under control? | What was fixed, and the reading after | Door shut a little after noon the next day. Back to 38°F (3°C) by 1 PM |
| What stops it happening again? | The change you made | Your change, such as a door check on the closing list |
| What happened to the food? | What was kept, chilled or thrown out, and why | About 17 hours above 41°F (5°C), far past 2 hours: any TCS food thrown out |
| Who acted, and who checked? | Initials and times, then the review | The person who found it, then the person in charge |
The automated record answers the question the food decision depends on
When cold food reads above 41°F (5°C), the decision turns on one question: how long has it been warm? The steps are simple. If the last good reading was within 2 hours, chill the food fast. If longer, or nobody knows, throw it out. See the danger zone.
A paper log can only answer with the last good check. Here is the same night, as a paper log with checks every 3 hours would see it and as the automated record shows it, if someone had found the door at the 9 PM check:
| At the 9 PM check | Paper log | Automated record |
|---|---|---|
| Last reading at or below 41°F (5°C) | 6 PM: 40°F (4.2°C) | 7:25 PM: 38°F (3.3°C) |
| Above 41°F (5°C) for | Up to 3 hours, nobody can say | 1 hour 30 minutes |
| What the steps say | Throw the food out | Chill the food fast, and keep it |
With the paper log, the food is lost at 9 PM. With the automated record, it can still be saved, and the corrective action carries the real start time.
In the real night, nobody shut the door until the next day. Readings on their own do not shut doors; an alert to a person does.
What to ask of any automated logging system
- Does it take the readings on its own, at night too?
TemperatureWise: yes, at least every 15 minutes, for every box, day and night. - Does a bad reading reach a person?
TemperatureWise: email, then a text, then a phone call, to up to 3 people per sensor, until someone answers. - Can you get the record out, and print it?
TemperatureWise: every reading is kept indefinitely and exports, and a daily sheet for each box prints with the reading at each check time, the highest reading since the last check, and the time spent above 41°F (5°C). - Where does the corrective action go?
TemperatureWise: the alert goes to a person, who records what they did in the app, next to the alert. The record already holds the start time and how long the box was above 41°F (5°C). - Who reviews it?
No system does this for you. FDA's retail HACCP manual has a manager review the temperature logs, for example weekly. See who is responsible for temperature logs.
Want the readings done for you, so your team only handles what goes wrong?
TemperatureWise takes the readings, calls your team when a box drifts, and prints the day's record.
- 96 readings a day per box, at least every 15 minutes, nights and weekends included.
- An alert that reaches someone. When a box drifts out of its normal pattern, TemperatureWise emails, then texts and calls up to 3 people per sensor until someone answers.
- A daily sheet for each box, with the reading at each check time, the highest reading since the last check, and the time spent above 41°F (5°C), ready to review and sign.
- Readings that can follow the food. TemperatureWise glycol buffer bottles, an optional add-on, make the sensor warm and cool the way food does. See temperature buffers and glycol bottles.
Your team still decides what to do about a bad reading, and records it in the TemperatureWise app, next to the alert. When a box drifts, the TemperatureWise alert also says what changed and names the likely culprits, so the corrective action starts in the right place:
How TemperatureWise reads those patterns is in the shapes failures leave in temperature data.