4 ways to automate dishwasher temperature checks

#1 - Simple log

Who it's for: Single-site kitchens where the chef or duty manager reads the dishwasher gauge themselves. No second checker, just a need to record that the machine is sanitising.

What it is: A dishwasher temperature check is a recorded reading of a commercial dishwasher's temperature. This version keeps it to the one thing that matters: the gauge reading, logged in one box. A commercial machine should rinse at 82°C or above, which is what actually sanitises crockery and glassware. A machine that washes and rinses too cool leaves plates that look clean but still carry bacteria.

Available on: Basic.

In practice: A single-site bistro logs the dishwasher gauge once service starts: 84°C. Under a minute, and a dated record that the machine was sanitising that day. If the gauge reads 70°C, the log turns a "the glasses smell odd" hunch into a documented fault to chase with the engineer.

Why it works: The reading lives in its own box, tied to the machine, so a number is never logged adrift from what it measures. The record stays readable months later, which is what an inspector wants.

Steps included:

• 1 grouped check (one box) holding: dishwasher temperature (number)

When to upgrade:

1. Rota staff are reading the gauge and don't all know the target
2. Your EHO wants proof, not just a typed number
3. You run more than one site and want a named sign-off

#2 - With guidance

Who it's for: Kitchens with new starters or a rota of staff who don't all know the target wash and rinse temperatures.

What it is: The simple log with a guidance note added to the box. The note explains that a commercial dishwasher should wash at around 55 to 60°C and rinse at 82°C or above to sanitise, and that a low rinse temperature means crockery is being cleaned but not disinfected.

Available on: Standard.

In practice: A high-turnover pub kitchen runs this. A new kitchen porter reads the gauge, sees the note explaining the rinse should hit 82°C, logs 78°C, and flags it rather than carrying on. The machine gets serviced before a week of under-sanitised glassware goes out.

What it adds to the previous template:

1. The target temperatures are on screen at the moment of the reading
2. New staff know what counts as a fail without asking
3. The difference between "clean" and "sanitised" is spelled out

Why it works: The guidance sits in the same box as the reading, so staff see it as they check. It turns the head chef's standard into a prompt that is always on screen.

Steps included:

• 1 grouped check (one box): dishwasher temperature (number)
• 1 guidance note in the box (target wash and rinse temperatures)

When to upgrade: When a typed number is no longer enough and you want photo proof of the gauge (Dishwasher #3), or a named sign-off for an audit trail (Dishwasher #4).

#3 - With photo evidence

Who it's for: Kitchens under EHO scrutiny that want to show proof the machine sanitises, rather than ask an inspector to trust a number.

What it is: The guided log plus a photo of the gauge next to the reading. A photo of 83°C on the gauge is proof the rinse was reaching temperature, which matters because a machine's sanitising step is invisible: the plates look the same whether it hit 82°C or 70°C.

Available on: Standard.

In practice: A care-home kitchen photographs the dishwasher gauge each service. When an inspector asked how they knew crockery for vulnerable residents was sanitised, the run of gauge photos answered it on the spot.

What it adds to the previous template:

1. A photo of the gauge next to the logged reading
2. Proof that the rinse reached sanitising temperature
3. A visual record an inspector can trust without taking your word

Why it works: Evidence taken in the moment is far stronger than a number recalled later. The photo ties the reading to the machine and the time.

Steps included:

• 1 grouped check (one box): dishwasher temperature (number)
• 1 guidance note in the box (target wash and rinse temperatures)
• 1 photo in the box (the gauge)

When to upgrade: When the reading needs a named, dated sign-off so an audit can see who confirmed it (Dishwasher #4).

#4 - With photo and signature

Who it's for: Multi-site groups where a duty manager signs off the dishwasher reading and the records have to stand up across sites.

What it is: The photo log plus a signature. The person doing the reading signs to confirm the machine reached temperature. For a group, that signature makes each site accountable for its own sanitising step.

Available on: Standard.

In practice: A 12-site restaurant group logs the dishwasher gauge with a photo each day, then the duty manager signs off. The food safety lead can open any site's record and see the reading, the photo, and the signature, timestamped, without visiting.

What it adds to the previous template:

1. A signature confirming the machine reached sanitising temperature
2. Named accountability for each site's reading
3. A complete record (reading, photo, signature) an auditor treats as best practice

Why it works: A signature turns a reading into a record someone has put their name to. With the photo and the reading, it is the full evidence an EHO or a group auditor wants.

Steps included:

• 1 grouped check (one box): dishwasher temperature (number)
• 1 guidance note in the box (target wash and rinse temperatures)
• 1 photo in the box (the gauge)
• 1 signature in the box (sign-off)

When to upgrade: When you want Poppi to flag a low rinse temperature to the manager on its own, or pull every site's readings into one report. Those versions are coming in the next post update.

How to pick the right version

You don't need to know our product to choose. Just answer three questions about how your kitchen runs.

Is it just you reading the gauge, or do other people do it too?

If you read it yourself and know the target, a plain log is enough. The moment rota staff do it, the target needs to be on the screen. If only you check, #1 is fine. If anyone else does, start at #2.

Do you need proof, or is a record enough?

A record tells you a number was logged. Proof is something you can put in front of an inspector. Because a machine's sanitising step is invisible, proof matters here. If a number is enough, stop at #1 or #2. If you are under scrutiny, #3 adds a photo of the gauge.

Does someone need to sign off the reading?

In one kitchen, the record speaks for itself. Across sites, an auditor wants to know who confirmed it. If no sign-off is needed, #3 is enough. If you run more than one site, #4 adds a signature.

Related reading

• Cooked food temperature check - proving food reached a safe temperature when cooked
• Fridge temperature check - the storage check that keeps cold food safe
• Food probe accuracy test - making sure the probe you check with reads true

Frequently asked questions

What temperature should a commercial dishwasher reach?

The wash cycle should reach around 55 to 60°C and the final rinse 82°C or above. The hot rinse is the step that sanitises: it kills the bacteria that the detergent and wash loosen. A machine that only reaches washing temperature cleans the visible dirt but leaves crockery un-sanitised.

How often should I check the dishwasher temperature?

At least once a day, usually at the start of service, and again if you suspect a problem (cloudy glasses, lingering smells, longer cycles). Logging the reading every day, not only when something looks wrong, gives you the record an EHO expects and an early warning when the machine starts to drift.

My dishwasher has no gauge. How do I check it?

Use a dishwasher-safe probe or thermal test strips run through a cycle to confirm the rinse temperature, then log that reading. Many machines have a digital display; if yours does not, a periodic strip or probe test is the way to prove the rinse is reaching 82°C. Record whatever method you use so the check is consistent.

What do I do if the rinse temperature is too low?

Record the reading and take the machine out of use for un-sanitised loads until it is fixed. Check the booster heater, the rinse-aid, and the cycle settings, and call an engineer if needed. Crockery washed below the rinse standard should be rewashed once the machine is working. The logged reading and your action are what protect you.

Where to go next

A dishwasher's most important job, sanitising, is the one you can't see. A run of logged gauge readings is the only way to prove it happened. The versions above move from a simple log to a signed photo record, so the proof is there when an inspector asks.

Five more versions are coming in the next refresh that bring AI into the check. Poppi can flag a low rinse temperature to the manager, and pull every site's readings into one report. Those need more review time and will land separately.

→ Build your own dishwasher temperature check on Pilla. The Basic plan unlocks the simple log today.