Performance Comparison of PET and PETG Media Bottles

This case study evaluates the performance of Corning® PET media bottles against competitor PETG bottles for storing serum at -80°C. After 30 days of storage, both bottle types demonstrated no significant differences in serum integrity, cell expansion, or morphology when cultured with L929 and AE-1 cell lines. The findings support the suitability of Corning PET media bottles for low-temperature storage of biological reagents, ensuring experimental reliability.