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Guides & resources

Written for the people who actually get audited: cold-chain record keeping and excursion handling, HACCP monitoring, pharma compliance and F-Gas obligations — the record-keeping side of temperature control, without the marketing gloss.

7 guides2 toolsNo sign-up to read.

What this page is for

These guides explain the records you keep about temperature and refrigeration in plain language. If you are new to compliance, start with one of the three shortcuts below; if you already have a logger export, skip straight to the monitor.

  • No sign-up to read, and every term is defined in the glossary.
  • Each card says who the guide is for, what you will learn, the level and the read time.
  • The help page turns all of this into step-by-step actions if you would rather start there.
Help & how this worksOpen the glossary

Start here

Three shortcuts into the library

Help & how this works
01

I'm new to compliance

Start with the records an audit expects — and how long each one has to be kept.

Read the record-keeping checklistGlossary of terms
02

I have a logger export

Turn the CSV into an excursion record; the file format is explained in one line.

Open the monitorWhat file do I need?
03

I need F-gas records

Understand the leak-check intervals first, then see which plan includes the F-gas report.

Read the F-gas record guideCompare plans
Close-up of a wireless temperature sensor logging a cold room
Featured guideCold chain

Cold-chain excursion handling: a response procedure

What to do in the first hour after a reading leaves the band: hold, record, assess against stability data, disposition, CAPA — and what the excursion file must contain.

Read the guide

All guides

Six more explainers

A refrigerated delivery truck backed into a loading dock

Cold-chain excursions: what an auditor actually asks for

Cold chainEvery excursion question comes down to five facts — the band, when it left, how long, how far, and what you did. Keep the evidence, not the summary.
Who it's for:
Operators who keep temperature records and get audited on them
What you'll learn:
The five facts every excursion question comes down to
Level and reading time
Beginner · 4 min read
Read guide
A refrigerated delivery truck backed into a loading dock

Cold-chain record-keeping checklist: what to keep (and for how long)

Cold chainThe five excursion facts, monitoring and calibration records, corrective actions — and how long 21 CFR 117 and WHO GDP expect the file to survive.
Who it's for:
Anyone building or cleaning up a cold-chain record file
What you'll learn:
What to keep, and the retention rule behind each record type
Level and reading time
Beginner · 7 min read
Read guide
Stainless-steel food preparation area in a temperature-controlled kitchen

HACCP temperature monitoring: the basics auditors check

HACCPCritical limits, monitoring records, corrective actions, verification and calibration — including the food-record nuance in 21 CFR 117 that most teams get wrong.
Who it's for:
Food-safety and QA teams running a HACCP plan
What you'll learn:
CCP limits, monitoring records, corrective actions and calibration
Level and reading time
Beginner · 7 min read
Read guide
A pharmaceutical refrigerator with stacked medicine trays

Pharma cold-chain compliance: GDP, excursions & evidence

PharmaWHO GDP, 21 CFR 205.50, USP chapters and the risk-based excursion assessment — plus the evidence pack an inspector or customer audits you on.
Who it's for:
Pharma distributors and QA teams shipping 2–8 °C product
What you'll learn:
The GDP frame, excursion assessment and the evidence pack
Level and reading time
Intermediate · 7 min read
Read guide
Manifold gauges connected to a refrigeration unit

F-Gas leak-check intervals & exemptions (EU 2024/573)

F-gasThe per-system leak-check table: what's exempt, what runs quarterly, and how tCO₂e and the leak-detection-system discount change the interval.
Who it's for:
Facilities with refrigeration systems under EU F-gas rules
What you'll learn:
The per-system interval and when the sealed-equipment exemption applies
Level and reading time
Intermediate · 5 min read
Read guide
Manifold gauges connected to a refrigeration unit

F-gas record keeping: what to keep for the 2027 leak-check rules

F-gasPer-system charge and tCO₂e, leak-check and repair records, and the 14 February 2027 reclaimed-HFC report — EU 2024/573 and the US AIM Act.
Who it's for:
Facilities preparing for the 2027 US F-gas deadlines
What you'll learn:
The per-system record set and the 14 February 2027 report
Level and reading time
Intermediate · 8 min read
Read guide

New here? The Help page walks through the first steps, and the glossary defines every term.

Tools

Workspaces that run on your own inputs

Calculators and a live workspace built on the same engine as the records.

Solar cold-room sizing calculator

Size a solar-powered cold room or ice plant: load, autonomy, capex and payback from your own inputs.
Open tool

Live monitoring workspace

See how Cryovo turns uploaded readings into events and an audit-ready record.
Open tool

The standards these guides reference

EU F-Gas (EU) 2024/573US AIM Act · 40 CFR 8421 CFR Part 11HACCP temperature records

Regulations these records are built around — record features by plan. Cryovo is not a certifying body.

General information, not legal or compliance advice for your jurisdiction.

Turn readings into records

Cryovo registers each asset's band, detects every out-of-band excursion, and keeps the five facts on the record — start, duration, worst value, recovery and cause. Start free, no card.

Start freeSee a sample report

No card required · cancel anytime · your data exports as CSV