Why are margarine tubs made of polypropylene?

Margarine tubs are made of polypropylene because it is a lightweight, durable, and moisture-resistant plastic that helps preserve the quality of the product inside. Polypropylene is also cost-effective and can be easily molded into various shapes, making it suitable for packaging. Additionally, it has a good barrier against oxygen and moisture, which helps extend the shelf life of the margarine. Furthermore, polypropylene is recyclable, aligning with increasing consumer demand for sustainable packaging solutions.