We ensure high-quality output of bottles through a multi-tiered rigorous QC process. Post annealing inspectors are placed to observe for inconsistencies, imperfections & occlusions. Glass bottles are then subjected to machine inspection, and finally a secondary physical inspection. Machines are also initially calibrated such that that bottle volume and dimensional tolerances are within acceptable standards. In the event that you have a specific inspection criteria, we can formulate a bespoke process according to your criteria. Additionally clients are most welcome to visit and inspect our factory in China. This can be facilitated via your account manager.