In December, Koreans do gimjang, which is making kimchi to eat over the winter.
Although not as much as before, many households still do gimjang.
Because a large amount of kimchi is made, it is important to keep them fresh for a long time during storage.
In the past, pots of kimchi were buried in the ground, but nowadays kimchi refrigerators replaced it became a must-have appliance.
When kimchi is stored in the kimchi refrigerator, it is sealed in a container.
Because kimchi containers make direct contact with kimchi, it has a huge impact on the taste and the fermentation process.
Polypropylene (PP), a plastic material, is generally used to make them. Mainly used in sealed food containers,
PP has the advantages of being safe, lightweight, and hard.
PP is one of the most widely used general-purpose plastics that can transform into various products depending on the properties and processing method.
With excellent tensile and impact strengths, it is used in a wide range of applications, including films, textiles, and automotive parts.