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HOW-TO TEMPLATE · PUBLISHED 2026-04-28 Updated 2026-04-28

How to Root Cause Analysis — A Temperature Template & Guide

A ready-to-use template for root cause analysis, aligned to Codex Annex II, FDA, FSA, and MHLW guidance.

Quick Answer

A ready-to-use template for root cause analysis, aligned to Codex Annex II, FDA, FSA, and MHLW guidance.

📑 Table of Contents
  1. 1. What you will produce by the end
  2. 2. Step-by-step (8 steps)
  3. 3. Template fields (copy these into your document)
  4. 4. Daily checklist that proves you are using the template
  5. 5. KPI targets the template should drive
  6. 6. Common implementation mistakes
  7. 7. Operator dialogue
    1. 🦉 & 🐣 & 🐮 — A 5-round operator’s dialogue
  8. Authority-recommended fixes
  9. Owl & Chick & Cow — an operator dialogue
  10. Documents you ship (to customers, suppliers, inspectors)
    1. Try the free MmowW CCP Decision Tree
  11. Primary sources (national & international authorities)
    1. Related Articles
    2. Ready to automate your HACCP?

1. What you will produce by the end

By following the steps below you will hold a documented artefact that satisfies the international authority evidentiary standard for root cause analysis.

2. Step-by-step (8 steps)

1
Read the authority text once

Codex CXC 1-1969 Rev.2020 + national authority sector handbook

▼
2
Identify the smallest unit of scope

One menu item, one process step, one supplier

▼
3
Write the worksheet header

Operator name, date, signature, version

▼
4
Map the hazards

Biological / chemical / physical — one row per hazard

▼
5
Apply the Codex Decision Tree

Free MmowW tool: 5 minutes

▼
6
Define the control limit

Specific number + measurement method + frequency

▼
7
Document the corrective action

What you do when the limit is breached, who reports to whom

▼
8
Sign and date

Owner + deputy + review date

3. Template fields (copy these into your document)

  1. Operator legal name and trading address
  2. Document version + effective date + review date
  3. Owner name + deputy name + signature lines
  4. Scope statement (which menu items, which processes)
  5. Hazard analysis table (4 columns: step, hazard, likelihood, severity)
  6. CCP determination column (Codex Decision Tree result)
  7. Critical limit + monitoring frequency + responsible role
  8. Corrective action procedure with escalation path
  9. Verification frequency + validation method
  10. Record retention period (per national requirement)

4. Daily checklist that proves you are using the template

Daily operations temperature checklist

5. KPI targets the template should drive

IndicatorBaselineTargetTimeMeasurement
Cold storage temperature in spec85%100%2 weeksContinuous logger
Hot-hold temperature in spec78%100%2 weeksProbe per service
Cooking core temperature monitored30% of batches100% of high-risk batches1 monthCCP probe
Cooling 60→10°C in ≤90 minVariable100% compliance1 monthLogger ramp
Annual probe calibrationNot tracked100% probesQuarterlyCalibration log
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6. Common implementation mistakes

  1. Filling in the template once and never reviewing it.
  2. Letting the consultant own it instead of the operator.
  3. Setting limits that cannot actually be measured on the line.
  4. Forgetting the corrective-action escalation path.
  5. Not retaining records for the period your authority requires.

7. Operator dialogue

🦉 & 🐣 & 🐮 — A 5-round operator’s dialogue

🐣
Piyo: Poppo-san, where does root cause analysis actually start in a real kitchen?
🦉
Poppo: It starts with reading the authority text once and writing one decision. Codex sets the international baseline; your national regulator binds you to a specific value or method.
🐣
Piyo: What if the staff resist the new rule?
🦉
Poppo: Show them the failure mode it prevents and the time it saves. Authority handbooks (FSA SFBB, MHLW small-business guidance) describe the minimum viable system — you adapt, you don’t reinvent.
🐮
Mou: Strong, kind, beautiful: root cause analysis made blissful for everyone in the kitchen.
  1. Bluetooth probe + phone app cuts recording time 90% per MHLW
  2. Magnetic holder + QR asset tag drops loss to <1/year
  3. Continuous logger turns 90-min cooling into observable curve
  4. Hot-hold pierce probe per service shift
  5. Quarterly probe calibration via auto-app reminder

Owl & Chick & Cow — an operator dialogue

🐣
Piyo: Why is 5-60°C called 'the danger zone'?
🦉
Poppo: FDA data: at 20°C, bacterial counts can rise 1,000× in 2 hours. Outside the zone, they barely grow.
🐣
Piyo: 1,000×?! That changes everything.
🦉
Poppo: That's why every regulator — Codex, FDA, FSA, EFSA, MHLW — converges on cold ≤5°C / hot ≥60°C.
🐮
Mou: Used to be: 'looks brown — done!' Now: probe to 75°C/1 min, photographed, logged.
🐣
Piyo: What about Bluetooth probes?
🦉
Poppo: FDA's Managing Food Safety strongly recommends electronic logging. MHLW's expert panel found 90% time savings.
🐮
Mou: Strong, kind, beautiful — controlling temperature is controlling food safety.

Documents you ship (to customers, suppliers, inspectors)

  1. Hygiene management plan (3-5 page A4 PDF) — menu overview, hazard analysis, CCP control limits, monitoring, corrective actions.
  2. HACCP declaration poster (A3 in-store) — communicates programme adoption to customers.
  3. Monthly hygiene report (auto-PDF) — trends on temperature compliance, near-misses, improvement.

Try the free MmowW CCP Decision Tree

Identify Critical Control Points for your menu in 5 minutes — aligned to Codex CXC 1-1969 Annex II, free in 6 languages.

Open the free tool →

Primary sources (national & international authorities)

  1. Codex Alimentarius — General Principles of Food Hygiene CXC 1-1969 Rev.2020 (HACCP Annex II). https://www.fao.org/fao-who-codexalimentarius/
  2. FAO — HACCP System and Guidelines for its Application. https://www.fao.org/3/y1390e/y1390e0a.htm
  3. WHO — Five Keys to Safer Food Manual (2006). https://www.who.int/publications/i/item/9789241594639
  4. CDC — Food Safety Surveillance & Outbreak Reports. https://www.cdc.gov/foodsafety/
  5. FDA — Managing Food Safety: Voluntary Use of HACCP Principles 2006. https://www.fda.gov/regulatory-information/search-fda-guidance-documents/managing-food-safety-manual-voluntary-use-haccp-principles
  6. Food Standards Agency (UK) — Annual Report 2024 / SFBB / FHRS. https://www.food.gov.uk/business-guidance/safer-food-better-business
  7. MHLW — HACCP Guidance for Small-Scale Food Operators (2020). https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000179028_00007.html
  8. ISO 22000:2018 — Food safety management systems. https://www.iso.org/iso-22000-food-safety-management.html

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Important disclaimer: MmowW is not a food-safety certification body. The content above is educational best-practice writing distilled from primary national-authority sources. Final responsibility for compliance with Codex, FDA, FSA, EFSA, MHLW, CFIA, or any other national requirement rests with the food-business operator and the relevant authority. Always verify with primary sources and your local regulator. Information is current as of the publication date and may be superseded by subsequent regulatory changes.
🦉
Takayuki Sawai — Gyoseishoshi

Licensed Gyoseishoshi (Administrative Scrivener) and founder of MmowW. Making food safety compliance blissful for businesses worldwide.

Loved for Safety.