How We Handle Defect Detection & Rejection Rates at GreaThermos

At GreaThermos, we understand that defect detection and rejection rates are more than production metrics—they are the foundation of factory reliability. As Jinhua Great Metal Products Co., Ltd., we combine 10+ years of experience with strict quality control to deliver eco-friendly sports bottles, coffee mugs and vacuum flasks that meet global standards.

Advanced Equipment for Precision Production

Our factory uses advanced equipment to monitor every stage of stainless steel drinkware manufacturing. From raw material preparation to final packaging, precise machinery and regular calibration help us maintain consistent quality and reduce defect risks.

Three-Stage Quality Control Process

• Incoming Material Inspection: All stainless steel and packaging materials are verified against FDA, LFGB and Pro65 requirements before entering production.
• In-Process Inspection: During forming, welding, polishing and assembly, our team checks key dimensions, surface finish and sealing performance to catch defects early.
• Final Inspection & Rejection Monitoring: Finished products are visually inspected and functionally tested. We track rejection rates by batch and use root-cause analysis to make continuous improvements.

International Certifications & Compliance

Our materials are FDA, LFGB and Pro65 certified, so every water bottle, coffee mug, hip flask and food container is safe for everyday use. We also use biodegradable packaging, supporting our position as a sustainable drinkware supplier.

Reliable Factory Communication & OEM Support

Low rejection rates are the result of teamwork. With clear communication and OEM/wholesale services, GreaThermos helps you build a stable and trustworthy supply chain. Contact us at andy@greatgoods.cn or +86-579-82380811 to start your project.