---
title: "Documenting allergen changeovers: how much proof is actually enough? — LiangduSyrup"
url: "https://liangdusyrup.com/forum/documenting-allergen-changeovers-how-much-proof-is-actually-enough/"
date: 2026-09-27
---

# Documenting allergen changeovers: how much proof is actually enough?

Allergen changeover records range from a single sign-off to photos, swabs and full traceability. Buyers rarely agree on the bar.

- Do you require swab results, or is a validated cleaning procedure enough?
- How long do you retain changeover records?
- Has a buyer ever rejected your documentation, and what did they want instead?

Would be useful to know what audit-ready looks like in your markets.