Food pet jar

When sourcing PET (Polyethylene Terephthalate) jars, ensure the material is 100% virgin food-grade PET, which is BPA-free and non-toxic. For high-clarity requirements, check the transparency index to ensure it mimics glass. Additionally, verify the gram weight of the preform; a higher weight usually indicates thicker walls and better structural integrity, preventing deformation during stacking or transport.

For global trade, products must comply with FDA (U.S. Food and Drug Administration) regulations or EU Regulation No 10/2011 regarding plastic materials intended to come into contact with food. Ensure the supplier provides Migration Testing reports to prove that chemicals do not leach into the food. For specific markets, LFGB (Germany) or REACH certifications may also be required to ensure chemical safety.

Sealing is critical for food shelf-life. You should request information on the liner type, such as Induction Heat Seal (IHS) liners, pressure-sensitive liners, or PE foam liners. Ensure the neck finish (e.g., 38/400, 70/400) matches the lid precisely to prevent leakage. For dry goods, a screw cap is standard, while easy-open aluminum ends (EOE) are preferred for long-term preservation of snacks or nuts.

PET is generally not suitable for hot-filling as it deforms at temperatures above 60°C (140°F). If your product requires hot-filling (like honey or sauces), you must specify Heat-Set PET or consider PP materials. PET jars are ideal for cold-fill or room-temperature products such as dried fruits, candies, protein powders, and grains due to their excellent moisture barrier properties and shatter resistance.

PET jars are lightweight but bulky, making them prone to surface scratching or crushing. Require the supplier to use five-layer corrugated export cartons and individual PE bag wrapping for each jar. For large volumes, palletization with stretch wrap is essential to prevent movement. On Made-in-China.com, you can look for Audited Suppliers who have verified packaging processes for fragile exports.

Focus on tooling costs and MOQ. If you require a custom shape, clarify who owns the injection mold and the cost for mold development. For standard shapes, negotiate based on volume tiers; prices typically drop significantly when ordering in Full Container Loads (FCL) due to the high volume-to-weight ratio. Always request a pre-production sample to verify the fit between the jar and the lid before the mass production run.

Utilize Secured Trading Services offered by platforms like Made-in-China.com to protect your payment until shipping documents are verified. To ensure quality consistency, hire a third-party inspection agency (like SGS or Intertek) to perform a During Production Inspection (DPI) or a Pre-Shipment Inspection (PSI) to check for wall thickness consistency, clarity, and thread accuracy.

Because empty jars represent 'shipping air,' Sea Freight (LCL or FCL) is the only economically viable option for bulk orders. To optimize costs, consider nesting (if the design allows) or sourcing jars and lids from the same supplier to save on consolidated shipping space. Ensure your freight forwarder is experienced in Class 9 or general cargo handling to avoid unnecessary customs delays.