Factory planning for water bottling projects
Recycled packaging · Food-contact qualification
Introducing recycled PET is a packaging and food-contact qualification project, not a percentage substitution in a resin purchase order. The team must verify that the specific recycling process and supplied material are suitable for the intended bottled-water contact under the rules of each manufacturing and sales market. Preserve resin identity, recycled-content basis, declarations, supporting chemistry or migration evidence, supplier controls and change notification. Then prove that the actual preform, bottle and closure system can be manufactured, filled, capped, conveyed, stored and distributed across the defined shelf conditions. FDA recycled-plastics guidance and European Commission information provide official frameworks, but one authority's review does not automatically authorize every material, use or jurisdiction, and recycled content alone does not substantiate environmental superiority.
01
The qualification file should identify the recycler, process, feedstock control, resin producer or compounder, material grade and intended use. Regulatory and quality owners must confirm the evidence route accepted in each destination market and whether restrictions apply to contact type, temperature, duration, layer structure or recycled-content source.
Record recycler and processing site, technology, feedstock controls, decontamination steps, resin or pellet grade, blend method and parties taking custody. A general statement that the resin is recycled PET does not identify the qualified process or supplied lot.
Match declarations, authority opinions or notifications and supporting studies to bottled water, container construction, use temperature, shelf contact and manufacturing conditions. Confirm current status with qualified regulatory counsel where needed; do not extrapolate from an unrelated tray or hot-fill use.
Assess the supplier's challenge-test, migration, surrogate-contaminant, non-intentionally added substance or other supporting package as applicable. Confirm test conditions and analytical capability represent the proposed use. Do not invent safe concentration limits from a summary certificate.
Define whether the declared percentage is by mass, layer, batch or another permitted basis, which components are included, and how evidence is reconciled. Keep commercial sustainability claims under a separate verified claims process.
02
Recycled-material variability makes traceability and change control especially important. Agree specifications that cover both food-contact evidence and converting behavior. Audit or otherwise qualify the controls proportionate to risk, then verify that each delivered lot can be traced to the approved material route rather than a generic product family.
List exact grade, source route, permitted blend, color or appearance criteria, intrinsic viscosity or other converting parameters where relevant, contamination and foreign-material controls, packaging, transport and documentation. Separate authority-defined needs from supplier-confirmed process ranges.
Connect recycler batch, resin lot, blending or compounding lot, preform lot, blowing run and finished-bottle production. Ensure data survive repacking and multiple suppliers. A certificate date without lot linkage does not support affected-product analysis.
Verify identity, seals, contamination, moisture control, packaging integrity and agreed certificate fields. Use sampling suited to the risk and material. Incoming tests complement but do not replace control of the recycling process.
Include feedstock policy, process, site, equipment, decontamination conditions, additives, grade, subcontractor, test method and regulatory-status changes. Define approval before use; do not rely on the supplier deciding that a change is minor for the bottler.
| Qualification gate | Evidence required | Decision owner | Change that reopens gate |
|---|---|---|---|
| Food-contact route | Exact process, grade, use and current authority basis | Regulatory and food safety | Process, feedstock, site or intended-use change |
| Material specification | Approved properties, blend and lot documentation | Packaging engineering and quality | Grade, blend, additive or supplier change |
| Bottle performance | Representative conversion, line and package trials | Operations and packaging engineering | Preform, bottle, line or distribution change |
| Market claims | Traceable percentage and substantiation file | Legal or claims owner | Calculation, supplier evidence or claim change |
03
Material authorization does not prove that a particular bottle performs. rPET color, thermal history, crystallinity, moisture response and property variability may affect preform drying, heating, stretch-blow molding and the finished package. Design trials around approved operating windows and include comparison material only as a control, not as an assumption that performance must be identical.
Confirm drying or conditioning requirements, storage after opening, contamination protection, melt or processing history and preform dimensions using supplier-confirmed information and trials. Prevent uncontrolled mixing with unapproved resin or regrind.
Challenge representative oven, stretch, pressure, mold and speed conditions; examine material distribution, neck, base, haze, color and defects. Use controlled bottle measurements and destructive tests selected for the design. Record process window rather than only the best sample.
Test rinser or air path, filler handling, capping, conveying, labeling, packing and palletizing at relevant speeds and stops. Check scuffing, deformation, stability and reject behavior. Separate failures caused by bottle design from guide or line settings.
Verify closure interface, top load or stacking performance, leak resistance and other project-specific functions over representative storage and transport conditions. Use the actual product and package configuration; an empty-bottle pass cannot qualify long-term filled performance.
04
Finish qualification with a risk-based study covering the intended product, bottle, closure, label, secondary pack, pallet and distribution environment. Evaluate sensory and chemical compatibility where relevant, plus appearance and mechanical function. Keep environmental communication separate and supported by a current chain-of-custody or calculation file.
Include intended shelf duration, temperature and light exposure, warehouse and transport, stacking, vibration and handling as justified. Define test acceleration scientifically where used and verify it against real-time evidence rather than claiming equivalence without support.
Assess sensory change, color or appearance, migration or chemistry concerns, gas or moisture behavior and closure performance according to risk and authority requirements. Use suitable controls and competent laboratories.
Verify approved supplier, grade, recycled-content route, certificate, lot identity and converting checks. Control deviations and mixed inventory. A line that can physically run an rPET preform should not release it before the food-contact and traceability gates close.
Reopen affected evidence after supplier, process, percentage, additive, preform, bottle, cap, product, market or distribution change. Confirm every recycled-content or environmental statement through qualified review; avoid implying that one attribute proves overall environmental benefit.
R
These sources support the risk-control method on this page. They do not set project-specific legal limits, test frequencies, engineering values or approvals; verify the current edition and local applicability before a decision.
U.S. FDA
European Commission
U.S. FDA
Buyer questions
No. Suitability depends on the specific recycling process, material, intended food-contact use, bottle construction, conditions and current jurisdictional requirements.
No. It is important evidence, but the plant must verify lot identity, applicability to its use, converting and package performance, traceability and change control.
Do not assume so. Regulatory frameworks and evidence routes differ. Confirm current requirements for every manufacturing and sales market with qualified reviewers.
Not necessarily. Performance depends on material route, grade, blend, preform and blowing process. Use representative trials instead of a blanket positive or negative assumption.
Provide exact resin and recycling-route documents, intended-use and market list, recycled-content basis, preform and bottle drawings, process conditions, package requirements, distribution profile and proposed claims.
Move this project question forward
Material authorization does not prove that a particular bottle performs. rPET color, thermal history, crystallinity, moisture response and property variability may affect preform drying, heating, stretch-blow molding and the finished package. Design trials around approved operating windows and include comparison material only as a control, not as an assumption that performance must be identical.
Not sure which data matters? Send what you have and state the decision you need to make.
Send target capacity and SKUs, source-water report, site utility schedule, building layout and required project milestones.
The project desk can identify missing inputs and a practical next step. Final engineering, configuration, compliance and commercial terms remain project-specific.
Allot Tech (Suzhou) Co., Ltd. · sales@allottech.com · Project telephone: +86 186 6213 1120 / +1 818 262 0958