PET Bottle Wholesale Suppliers
Find verified PET bottle wholesale manufacturers and suppliers on Towobo. Compare neck finish standards, wall thickness and mechanical specifications, food contact compliance, recycled content (rPET) options, MOQs, and lead times for beverage, cooking-oil, condiment, and personal care applications.
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Browse PET Bottle Suppliers →PET bottle specifications: neck finishes, grades, and applications
PET (polyethylene terephthalate) bottles are produced by stretch blow moulding — either from PET preforms (two-stage ISBM process) or directly from granules (single-stage). Clear PET is the dominant material for beverage bottles, cooking-oil and edible-oil bottles, condiment and sauce bottles, and personal care packaging due to its excellent optical clarity, mechanical strength, chemical resistance, and recyclability. Key specification decisions when sourcing PET bottles wholesale are neck finish standard, bottle capacity and dimensions, wall thickness, colour (clear, light blue, amber, custom), and whether the application requires standard virgin PET or a recycled-content rPET grade. Neck finish determines closure compatibility: PCO 1881 is the global standard for carbonated beverages; 28mm 1881 for still water and still beverages; 38mm for cooking oil, condiments, and household liquids. For cooking-oil PET bottles — typically 500ml, 1L, and 2L — the 38mm neck is most common, accepting standard cooking-oil screw caps or dispensing caps. For beverages sensitive to acetaldehyde (AA) migration — juices, dairy drinks, mineral water — specify a low-AA PET grade (AA below 1 μg/L is a typical requirement); standard PET grades have higher AA levels acceptable for carbonated soft drinks but not for sensitive still beverages. All food-contact PET bottles must be accompanied by a Declaration of Compliance (DoC) under EU Regulation 10/2011 or FDA 21 CFR.
Preform vs finished bottle sourcing
Buyers can source PET bottles either as finished blown bottles (ready to fill) or as unblown PET preforms (to be blown on-site using a stretch blow moulding machine). Finished bottles offer the simplest procurement and are appropriate when annual volumes do not justify investment in blow moulding equipment. However, finished bottles have low bulk density — a 1L PET bottle occupies roughly 10–15x the volume of the equivalent preform — meaning much of a container's shipping cost is the enclosed air. Large-volume buyers (typically above 500,000 bottles per year) often import PET preforms and blow them locally to reduce logistics cost, improve lead time responsiveness, and allow bottle design flexibility. For buyers considering on-site blow moulding, see the PET preforms suppliers page for preform specifications and the plastic bottle blow moulding machines page for equipment guidance. When sourcing from Chinese manufacturers, request ISO 9001, food contact DoC, and if recycled content is claimed, a GRS (Global Recycled Standard) certificate confirming the percentage and traceability of rPET used.
Frequently asked questions
What neck finish should I specify for a cooking-oil PET bottle?
For retail cooking-oil PET bottles (500ml–2L), the 38mm neck finish is the most common standard — compatible with a wide range of standard screw caps, sports caps, dispensing caps, and disc-top caps from closure manufacturers. If you are sourcing bottles from one supplier and closures from another, confirm the exact thread profile specification (not just the diameter) to ensure compatibility. Standard 38mm closures are widely available from multiple suppliers globally, giving you sourcing flexibility.
What is rPET and is it safe for food contact?
rPET is recycled PET recovered from post-consumer waste — primarily single-use drinks bottles — that has been cleaned, decontaminated, and reprocessed into bottle-grade pellets. For EU food contact applications, rPET used in food-contact packaging must come from a recycling process that has been assessed and approved by EFSA (European Food Safety Authority) as meeting the decontamination efficacy requirements. Not all rPET is food-grade — standard mechanical recycling may not remove all contaminants to EFSA's required level. Chemical recycling (depolymerisation to monomer) produces rPET that is functionally identical to virgin PET for food contact. Always request the EFSA opinion reference number for the specific recycling process used when sourcing food-contact rPET bottles.
What is the typical MOQ and lead time for wholesale PET bottles from China?
For stock-shape PET bottles (standard designs already in the manufacturer's mould library), MOQs are typically 5,000–20,000 units per size and colour with 2–4 week production lead time. For custom-shaped PET bottles requiring new mould tooling, mould investment is typically $3,000–15,000 depending on complexity, with a minimum production commitment of 30,000–100,000 units per year to amortise the mould cost. Lead time for new mould development is typically 6–10 weeks. Add 3–4 weeks sea freight to Europe or 4–5 weeks to the US West Coast. Always request T1 samples from any new mould before committing to bulk production.
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