PET bottles are used in packaging industries to pack different products such as pharmaceuticals, chemicals, etc. The manufacturers of the bottles need to ensure that the products that they are offering to the customers are free from all quality defects. This can be done by performing certain tests on the PET bottles to ensure the best quality of PET bottles. Strain distribution is one such defect that degrades the quality of the PET bottles. The manufacturers analyze the strain distribution in the PET bottles so that perfect, defect-free and high-quality of the bottle can be produced easily. Polariscope Strain Viewer is the best machine which is considered as the PET Bottle Strain Analyzer that detects the strains in the preforms to ensure the best quality of the PET bottles at the time of blow molding.