We use only food-grade materials that are safe for people in our manufacturing process, and consumer safety is our top priority.
To maintain high quality, we conduct a heavy metal test every year.
We use only food-grade materials that are safe for people in our manufacturing process, and consumer safety is our top priority.
To maintain high quality, we conduct a heavy metal test every year.
Certifications & Patents Held
BUWON KH develops products by first considering the many situations in which customers use them, and launches only products that pass our own repeated tests.
Repeated microwave use
KCL test report · B-500 · KS G 5603 · 2025.02
Compression & twist strength
Sealing performance (30-minute delivery vibration)
Open/close durability test
Heat resistance · load test
Cling wrap test
