Quality control of bottled tea packaging using the Statistical Quality Control (SQC) and the Failure Mode and Effect Analysis (FMEA)

The packaging is a container used for preventing or minimising the damage of products. Company X is one of the companies engaged in beverage packaging, and one of its larger product is bottled tea. The primary packaging of the tea is a semi-finished PET bottle. Its small and light shape is beneficial to reduce transportation costs. Quality control is carried out so that the products are following predetermined standards and the consumer's requirements. This research aimed is to identify the potential risk of the bottled tea packaging and to reduce the defect to increase the productivity of the company using statistical quality control (SQC) and the analysis of failure modes and effects (FMEA). SQC results showed that the highest number of damage occurred in February 2019 at 3.95%. The results of the risk analysis using FMEA showed that defective preform was the main risk that needed to be controlled. This risk had a Risk Priority Number (RPN) of 294, caused by supplier errors.