A China factory audit should test evidence, not confirm a supplier’s marketing claims. For an oral-care project, the useful output is a record of what was observed, what document was reviewed, what remains unverified and what must be corrected before the buyer proceeds.
Use this checklist for an in-person, remote or third-party audit. Adapt it to the product, target market and project risks. It is a buyer diligence framework, not a certification standard, legal opinion or product approval.
Use three audit outcomes
| Outcome | Meaning | Buyer action |
|---|---|---|
| Pass | Relevant evidence was reviewed, is in scope and is consistent with the observation | Record the evidence, date, scope and any follow-up date |
| Verify | Information was presented but its scope, currency or connection to the project is not yet confirmed | Request the missing record or independent validation before relying on it |
| Escalate | A material gap, contradiction, refusal, unsafe practice or unresolved nonconformance is found | Pause the affected decision; request corrective action, specialist review or an alternative supplier |
Factory audit checklist
| Area | Buyer questions and evidence | Observable red flags | Decision logic |
|---|---|---|---|
| Company identity and scope | Confirm legal entity, facility address, product scope and the role of any subcontractor. Review source documents against the entity being evaluated. | Name/address mismatch; unclear responsibility for a key process. | Verify until the proposed project entity and process scope are clear. |
| Product and manufacturing capability | Ask how the proposed configuration is made, which processes are in-house and which are controlled externally. Observe only the areas relevant to the brief. | Generic tour, unavailable process owner, or samples unrelated to the proposed product. | Escalate if the supplier cannot connect capability evidence to the product route. |
| Engineering and change control | Request a sample revision record, engineering-change route and approval authority. | Uncontrolled drawings, changes agreed only verbally, or no record of impact. | Escalate material changes until documented and approved. |
| Incoming, in-process and outgoing QC | Review the inspection approach, records, nonconformance disposition and corrective-action example for relevant components/processes. | Only policies are available; no traceable record or corrective action. | Verify record scope; escalate repeated or uncontained issues. |
| Equipment and calibration | Ask how relevant measuring/test equipment is identified, maintained and checked; review records for the equipment used for the proposed product. | Unidentified equipment, expired/absent records, or operators cannot explain use. | Verify before relying on a measurement or test result. |
| Traceability and nonconformance | Trace a selected lot or sample from components through production and shipment records where available. Ask how a defect is contained and closed. | Records cannot be linked, no lot/revision identity, or corrective actions lack closure. | Escalate if the buyer cannot establish what product is affected by a failure. |
| Product/configuration documents | Request a document index with model/configuration, market, issuer, date and limitation. Review only documents relevant to the planned product. | Certificate or report used as a blanket claim for unrelated products. | Verify scope; obtain specialist advice for market-entry conclusions. |
| Capacity and production planning | Ask how the supplier plans the proposed work, manages constraints and communicates a change to the schedule. | Capacity figure without a plan, or no owner for production changes. | Verify through current project planning, not a generic capacity statement. |
| Supplier and component controls | Ask how critical components are approved, changed and traced. Review the change-control path for a proposed alternative. | Unapproved substitutions or no documented supplier/component approval route. | Escalate critical-component changes until impact is reviewed. |
| Workplace and labour evidence | Request the appropriate evidence for the buyer’s code, contractual requirements and jurisdictional obligations. Record what was reviewed and its limits. | Restricted access, contradictory records or unsupported compliance claims. | Verify or escalate; do not draw a generic labour-compliance conclusion from a short audit. |
| Packaging and shipment controls | Check artwork revision, packaging specifications, shipment documents and release responsibility for the planned route. | Packaging/labels are not linked to the approved product or destination requirements. | Escalate before shipment release if critical information is unresolved. |
Documents to request before and after the visit
- Legal-entity and facility-scope documents relevant to the supplier being evaluated.
- Product/configuration and sample-revision records for the buyer’s proposed project.
- Quality, nonconformance, corrective-action, equipment and traceability records in the scope reviewed.
- A document index for market/product evidence, with scope and validity clearly identified.
- A corrective-action plan with owner, due date, required evidence and re-verification method.
Certificate and audit caution
A management-system certificate may be a useful diligence input, but it is not proof that every product meets a requirement or that a factory has passed an independent audit for your project. Likewise, a factory statement is not an audit outcome. Record the exact evidence and decide whether it supports a pass, still needs verification or requires escalation.
Oral-care product-specific audit checks
| Product focus | Audit focus | Pass / verify / escalate prompt |
|---|---|---|
| Electric toothbrush | Trace the approved configuration through key interfaces such as motor/drive, battery/charging, PCB/controls, housing and replacement-head fit where applicable. | Verify that the sample revision, inspection approach and change-control record describe the proposed configuration; escalate an unapproved component or revision substitution. |
| Water flosser | Review the proposed water path, reservoir/nozzle interfaces, sealing/leakage checks, battery/charging, controls and accessory configuration where applicable. | Verify sample acceptance and the evidence route for the requested configuration; escalate a claim that is not connected to a record, sample or approved change. |
| Replacement heads and accessories | Check the interface, material/specification record, fit/retention expectations and the approved packaging/accessory list. | Verify identity and revision against the proposed product; escalate unclear compatibility or a substituted accessory. |
| Packaging and labels | Trace artwork and label revision to the product configuration, intended market and shipment-release process. | Verify the revision, approval owner and document scope; escalate unresolved market, language or product-identity issues before release. |
Use the water flosser OEM manufacturer framework before audit scheduling, and keep the findings connected to the wider supply-chain risk register.
Relish first-party context
Relish reports combined manufacturing operations of 20,000 sqm, 12 production lines, 350+ employees and 30+ R&D personnel, and has been manufacturing oral care products since 2012. Treat these as supplier-provided first-party context to be examined within the buyer’s audit scope; they are not independent audit results, product approvals or compliance conclusions.
Next step: Request a factory-documentation discussion and specify the product configuration, target market and audit questions you need to resolve.
